--- title: "Theacrine: Dosing & Vendor Prices | BodyHackGuide" url: https://www.bodyhackguide.co/compound/theacrine description: "Theacrine: dosing protocols, mechanism & side effects, 80 PubMed results. Compare current vendor prices." lang: en --- Skip to content Compare notes on r/BodyHackGuide (https://reddit.com/r/bodyhackguide) Compare notes with other researchers. Join r/BodyHackGuide (https://reddit.com/r/bodyhackguide) # Theacrine Nootropics (https://www.bodyhackguide.co/wiki#cat-nootropics)Dietary Supplement (Food Ingredient) Also known as: 1,3,7,9-tetramethyluric acid, TeaCrine, 1,3,7,9-tetramethyl-purine-2,6,8-trione Theacrine (1,3,7,9-tetramethyluric acid) is a purine alkaloid structurally related to caffeine, found naturally in Camellia assamica var. kucha — a tea cultivar grown in southern China and northern Vietnam — and in smaller amounts in Cupuaçu (Theobroma grandiflorum) seeds. Price check No vendor listings yet We do not track a vendor for Theacrine yet. Compare other compounds: https://www.bodyhackguide.co/compare Half-life: 16-20 hours (plasma) Route: Oral MW: 224.22 g/mol 80 PubMed results (https://pubmed.ncbi.nlm.nih.gov/?term=theacrine%20OR%20%221%2C3%2C7%2C9-tetramethyluric%20acid%22%20OR%20TeaCrine%20cognition%20energy%20tolerance) Last reviewed: May 4, 2026 ## Overview ### At A Glance Mechanism Theacrine's primary pharmacodynamic signature is dual adenosine A1/A2A receptor antagonism, the same mechanism caffeine exploits to reduce perceived fatigue and suppress sleep drive. The 9-methyl and 2,6,8-trione modifications to the xanthine core shift its receptor affinity prof… Half-Life 16-20 hours (plasma); Tmax 60-90 minutes Routes Oral ### Overview Theacrine (1,3,7,9-tetramethyluric acid) is a purine alkaloid structurally related to caffeine, found naturally in Camellia assamica var. kucha — a tea cultivar grown in southern China and northern Vietnam — and in smaller amounts in Cupuaçu (Theobroma grandiflorum) seeds. It shares caffeine's xanthine backbone but carries an extra methyl group at the 9-position and a 2,6,8-trione oxidation pattern, giving it pharmacology that overlaps caffeine's adenosine-receptor antagonism while diverging in dopaminergic tone and tolerance development. The most widely studied form in human trials is the patented ingredient TeaCrine, a ≥98% pure synthetic equivalent used in most commercial nootropic and pre-workout formulas. The practical appeal of theacrine in community use rests on three observations: first, healthy adults taking 200-300 mg daily report stimulation subjectively comparable to 150-200 mg caffeine — but with less jitter, less heart-rate elevation, and a slower onset (~60-90 minutes) that many users describe as "smoother" than caffeine's 20-40 minute peak. Second, an 8-week daily-dosing study (Taylor 2016) found no meaningful development of tolerance at 200-300 mg/day, no withdrawal signs on cessation, and no shifts in resting heart rate, blood pressure, liver enzymes, or complete blood count — a tolerance profile that genuinely differs from caffeine, where habitual use produces documented receptor upregulation and dependence within 1-2 weeks. Third, co-administration with caffeine produces synergy: pharmacokinetic data (He 2017) show caffeine roughly doubles theacrine plasma exposure (AUC), likely by slowing hepatic clearance, so 125 mg theacrine + 150 mg caffeine often outperforms either compound alone for perceived focus and endurance. Mechanism is not identical to caffeine. Like caffeine, theacrine antagonizes adenosine A1 and A2A receptors (the primary driver of wakefulness and reduced perception of effort), but rodent models (Feduccia 2012) additionally show dose-dependent increases in nucleus accumbens dopamine and locomotor activation that are blocked by both adenosine and dopamine-D1 antagonists — suggesting a dual adenosinergic-dopaminergic mechanism that caffeine does not fully replicate. This may explain the "motivation" quality users report and the absence of downregulation: chronic adenosine blockade alone should produce tolerance, but the concurrent dopaminergic signal appears to counterbalance receptor adaptation over an 8-week horizon. Human clinical data are limited but consistent. A double-blind crossover in habitual caffeine users (Ziegenfuss 2017) showed 300 mg theacrine improved reaction-time Bond-Lader alertness scores without the jitter-axis elevation that 150 mg caffeine produced in the same subjects. A separate 8-week safety and efficacy trial in 60 adults (Kuhman 2015) reported significant improvements in self-rated energy, focus, and concentration versus placebo at 200 and 300 mg/day with no adverse clinical findings. Community-tier evidence (r/Nootropics, forum writeups spanning 2015-2024) tends to converge on 100-200 mg as a mild-stim daily baseline, 250-300 mg for pre-workout or high-focus sessions, and 150 mg + 100 mg caffeine as a common synergy stack. Most users who transition from pure caffeine report similar energy with substantially less afternoon "crash" and easier sleep onset if taken before 2 PM. Practical considerations: theacrine is sold as a food-supplement ingredient in the US, EU, Australia, and most of Asia. It is NOT a controlled substance, not a prescription drug, and has no abuse liability signal in animal models. Quality matters — the vast majority of peer-reviewed human data used TeaCrine, a standardized ≥98% pure ingredient; some generic "theacrine" bulk powder has been found to be underdosed or contaminated with caffeine (independent COA testing, 2019-2021). Look for products that explicitly cite the TeaCrine trademark and provide a certificate of analysis. Theacrine is often stacked with L-theanine (100-200 mg) for an anxiolytic counterweight, with alpha-GPC (300 mg) for cholinergic contrast, and with dynamine (methylliberine, a faster-acting but shorter-duration analog) for a biphasic energy curve. It is not recommended for pregnancy, breastfeeding, uncontrolled hypertension, or anyone on MAOIs. The safety window at studied doses is wide, but the long-term profile beyond 8 weeks remains formally uncharacterized — community experience over 2-3 years of daily use suggests it holds up, but this is self-report data. ## Chemical Information IUPAC Name Not yet available CAS Number Not yet available Molecular Formula Not yet available Molecular Mass 224.22 g/mol ## Dosing & Protocols ### Unlock the dosing protocols Enter your email to keep reading. It is free, and it opens these tabs on every compound page in this browser. - Route - Beginner, intermediate and advanced protocols - Reconstitution and handling notes - Stacking notes You also get the free peptide cheat sheet by email. Unsubscribe anytime. Have an account? Sign in (https://www.bodyhackguide.co/auth) ## Research ### Unlock the research summary - A summary of the key research - Safety and side effects - A link to the PubMed results ## Interactions ### Contraindications Absolute contraindications: known theacrine or xanthine hypersensitivity; uncontrolled hypertension (systolic >160 or diastolic >100 mmHg); ventricular arrhythmia or symptomatic atrial fibrillation; MAOI therapy (phenelzine, tranylcypromine, selegiline at psychiatric doses); pregnancy; breastfeeding; age under 18. Relative contraindications requiring clinician review: treated hypertension on beta-blockers, ACE inhibitors, or calcium-channel blockers; history of panic disorder or generalized anxiety disorder (dopaminergic activation can be anxiogenic in vulnerable individuals); bipolar disorder on stimulant-sensitive regimens; chronic kidney disease (eGFR <60) due to altered xanthine clearance; active gout or frequent hyperuricemia; concurrent use of high-dose caffeine (>400 mg/day) without first reducing caffeine intake; fluvoxamine, ciprofloxacin, or other strong CYP1A2 inhibitors. Drug interactions documented or theoretical: MAOIs (theoretical dopaminergic crisis — avoid); oral contraceptives containing ethinyl estradiol (slow CYP1A2, may extend theacrine exposure — monitor); high-dose caffeine (additive sympathomimetic — dose-reduce both); stimulant ADHD medications (amphetamine, methylphenidate) — the dopaminergic overlap is theoretical but concerning enough to warrant prescriber awareness. Pre-surgical: discontinue theacrine at least 48 hours before elective surgery due to the long half-life and theoretical cardiovascular sensitization under anesthesia. Exercise/competitive athletics: theacrine is NOT on the 2024 WADA prohibited list. It is permitted in most sport-governing bodies including NCAA, IOC, and UCI. Competitive athletes should verify with their specific governing body before use. Research Disclaimer This interaction data is compiled from published research and community reports. It may not be exhaustive. Always consult a healthcare professional before combining compounds. No listings found for Theacrine. ### Sign in to leave a review Reviews on BodyHackGuide are tied to verified user accounts and moderated before publishing. Sign in (free, no spam) to share your experience with Theacrine. ### Related Compounds View All (https://www.bodyhackguide.co/wiki) ### 9-Me-BC (9-Methyl-β-carboline) Nootropics Preclinical 9-Methyl--carboline (9-Me-BC) is a synthetic -carboline alkaloid that has drawn nootropic-community interest for a preclinical property that is genuinely unusual among -carbolines: in rodent and cell-culture studies it appears to stimulate the dopaminergic phenotype - raising tyrosine hydroxylase, the number of differentiated dopamine neurons and dopamine content - while also showing neuroprotective, neurorestorative and anti-inflammatory effects, plus in-vitro MAO-A/MAO-B inhibition [PMID:17913302, PMID:20374418, PMID:32285253]. t½ Not characterized in humans (no pharmacokinetic data). Community/anecdotal only: ~5-25 mg per day, oral. No validated or approved human dose exists. 6 PubMed View Profile https://www.bodyhackguide.co/compound/9-mbc ### Aniracetam Nootropics Approved (Italy) Aniracetam is a pyrrolidinone in the racetam family, developed by Hoffmann-La Roche under the code Ro 13-5057. t½ About half an hour for the parent drug in humans. Plasma elimination half-life was 0.47 to 0.49 hours after a single 400 mg oral dose in 20 healthy male volunteers (PMID: 19025058). Aniracetam is extensively metabolized to N-anisoyl-GABA and anisic acid; in six elderly hospitalized patients with cerebrovascular disease and reduced creatinine clearance, metabolite half-life was 4 to 7 times longer than in young volunteers (PMID: 9062694). Preclinical View Profile https://www.bodyhackguide.co/compound/aniracetam ### Bemethyl (bemitil) Nootropics Approved (Russia) Bemethyl, known in the Russian literature as bemitil and sold in the region under names including Metaprot, Bemactor and Antihot, is 2-ethylthiobenzimidazole, normally handled as the hydrobromide salt. t½ Not established in humans; in healthy volunteers given a single 250 mg oral dose of the Metaprot capsule form, peak serum ethylthiobenzimidazole averaged 0.91 microg/mL at about 1.06 h, and no terminal half-life was reported (PMID: 21870773) Preclinical View Profile https://www.bodyhackguide.co/compound/bemethyl ### Bromantane Nootropics Russia Approved Bromantane is an atypical psychostimulant and anxiolytic developed in the 1980s at the Zakusov Institute of Pharmacology of the Russian Academy of Medical Sciences, originally created as an adaptogen for Soviet military and elite athletic use and later approved in Russia for the treatment of neurasthenic and asthenic disorders under the trade name Ladasten. 34 PubMed View Profile https://www.bodyhackguide.co/compound/bromantane ### Cyclazodone Nootropics Preclinical Cyclazodone is the N-cyclopropyl derivative of pemoline, a 4-oxazolidinone stimulant. Preclinical View Profile https://www.bodyhackguide.co/compound/cyclazodone ### Dihexa Nootropics Preclinical Dihexa is a synthetic peptide analogue of the angiotensin IV metabolite LVV-hemorphin-7, developed at Washington State University. t½ Not characterized in humans. Dihexa was engineered for metabolic stability (resistant to plasma and enzymatic degradation) and blood-brain-barrier penetration; in preclinical work its central procognitive effects appear to outlast its plasma presence. 5 to 40 mg oral per day (anecdotal range; no established human dose) 1 PubMed View Profile https://www.bodyhackguide.co/compound/dihexa ### Side-by-Side Comparisons All Comparisons (https://www.bodyhackguide.co/compare) Theacrine vs Caffeine: https://www.bodyhackguide.co/compare/theacrine-vs-caffeine View Full Dosage Guide → Protocols, calculator & safety for Theacrine https://www.bodyhackguide.co/guides/dosage/theacrine ### Related Articles All Posts (https://www.bodyhackguide.co/blog) #### We Compared 8 Focus Nootropics for 90 Days: Here's What Actually Works We tested 8 popular focus nootropics over 90 days and tracked reaction time, deep work hours, and daily focus ratings. Here are the results, with costs and side effects. 4/3/2026 https://www.bodyhackguide.co/blog/best-focus-nootropics-90-day-comparison #### Nootropic Pouches: Everything You Need to Know Sublingual nootropic pouches are changing how we take cognitive enhancers. This guide covers the science of buccal absorption, compares available products, and breaks down ingredients in the leading formulations. 4/1/2026 https://www.bodyhackguide.co/blog/nootropic-pouches-guide #### The Biohacker's Complete Nootropic Stack Guide 10 research-backed nootropic stacks for every goal: focus, memory, anxiety, sleep, motivation, creativity, and more. Complete dosing protocols, timing, cycling, and product recommendations. 4/1/2026 https://www.bodyhackguide.co/blog/complete-nootropic-stack-guide ### Price check No vendor listings yet See the vendor scorecard (https://www.bodyhackguide.co/vendors/scorecard) ### Research Score 23 80 PubMed results ### Quality Indicators Data Completeness 63% Description Mechanism of Action Chemical Data Dosing Protocols Safety Profile PubMed Results Interactions Vendor Listings Research Volume 80 PubMed results Well-researched compound ### Quick Facts Half-Life Molecular Weight 224.22 g/mol Administration Oral Trial Phase Dietary Supplement (Food Ingredient) Research Disclaimer This information is for educational and research purposes only. Not intended as medical advice. Consult a healthcare professional before use. ## Frequently Asked Questions How is theacrine different from caffeine? Theacrine shares caffeine's adenosine A1/A2A antagonism but adds dopaminergic activation (Feduccia 2012, PMID 22771692) and has a 16-20 hour half-life versus caffeine's 5 hours. The practical differences: slower onset (60-90 minutes vs 20-40), less jitter and peripheral stimulation, no measurable tolerance at 8 weeks of daily use (Taylor 2016, PMID 27335344), and no withdrawal on cessation. Many users describe the subjective quality as 'motivation' or 'smooth energy' rather than caffeine's 'alertness.' Does theacrine really not build tolerance? The 8-week clinical data (Taylor 2016) show no measurable tolerance at 200-300 mg/day — no waning subjective effect, no cardiovascular adaptation, no need for dose escalation. Rodent locomotor data (Feduccia 2012) show the same pattern over 7 days where caffeine produces clear tolerance. The mechanism probably involves the dopaminergic signal counterbalancing adenosine-receptor desensitization. Long-term (>8 week) data are limited, so 'no tolerance ever' overstates the evidence — but across the best-characterized window, the tolerance resistance is real. What's the optimal dose? 100-200 mg in the morning is the community-tier sweet spot for most users. The clinical trials used 200-300 mg. Above 300 mg, effects tend to flatten or invert for many users, suggesting dopaminergic receptor saturation. Start at 100 mg for 1-2 weeks, then titrate up only if needed. When stacking with caffeine, reduce the theacrine dose by ~25% because caffeine doubles theacrine AUC (He 2017, PMID 28356193). Can I take theacrine every day? Yes, the 8-week daily dosing trial (Taylor 2016, PMID 27335344) found no tolerance, no adverse clinical findings, and no withdrawal. Most users take it daily without cycling. Some prefer 5 days on / 2 days off for subjective freshness or to preserve sleep on off-days, but there's no pharmacological reason the cycle is necessary. Will it mess up my sleep? Almost certainly, if you take it after ~2 PM. The 16-20 hour half-life means a 200 mg morning dose still has ~40% of peak plasma at 10 PM. Take theacrine before noon only, and skip on days when uncompromised sleep is critical. No post-dose sleep aid effectively offsets it — the pharmacokinetics simply don't allow a same-day rescue. Does it work better with caffeine? Often yes. Caffeine doubles theacrine plasma AUC (He 2017, PMID 28356193), adds fast-onset alertness, and the combination tested in Ziegenfuss 2017 (PMID 28280478) outperformed either monotherapy for composite attention. A common starter combination is 125 mg theacrine + 100 mg caffeine morning. Reduce your usual caffeine ~30% the first time you add theacrine to avoid cardiovascular overshoot. Is TeaCrine different from generic theacrine? TeaCrine is a ≥98% pure branded ingredient (Compound Solutions) used in most published clinical trials. Generic bulk theacrine has shown variable purity in independent testing — some underdosed, some adulterated with caffeine. If the supplement bottle doesn't cite the TeaCrine trademark and provide a COA, quality is unreliable. The clinical efficacy data technically only cover TeaCrine, not generic material. Is theacrine legal and safe? Theacrine is legal as a dietary-supplement ingredient in the US, EU, Canada, Australia, and most of Asia. It's not a controlled substance, not a prescription drug, and has no abuse liability signal in rodent or human studies. Safety at 100-300 mg/day is supported by 8 weeks of clinical exposure with no adverse findings. It is not on the 2024 WADA prohibited list, though competitive athletes should verify with their specific governing body. Who should avoid it? Anyone pregnant or breastfeeding, under 18, with uncontrolled hypertension, arrhythmia, or on MAOIs. Relative cautions include treated hypertension, anxiety disorders (dopaminergic activation can be anxiogenic), bipolar disorder, active gout, and concurrent use of strong CYP1A2 inhibitors like fluvoxamine or ciprofloxacin. If you're on any daily medication, check with your prescriber before starting. What does theacrine stack well with? The most evidence-backed pairing is caffeine (see above). L-theanine (100-200 mg) is the most common anxiolytic counterweight. Alpha-GPC (300 mg) adds cholinergic depth for cognitive sessions. Dynamine (100 mg, methylliberine) creates a biphasic energy curve. Rhodiola rosea layers an adaptogen on top. Avoid stacking with other stimulants (DMHA, DMAA, yohimbine) — the sympathomimetic load compounds without additive benefit. ## Research Tools ### Peptide Calculator Reconstitution & syringe units https://www.bodyhackguide.co/tools/reconstitution ### Reconstitution Guide How to mix, step by step https://www.bodyhackguide.co/guides/how-to-reconstitute-peptides ### Nasal Spray Calc mL per actuation https://www.bodyhackguide.co/tools/intranasal ### Half-Life Visualizer Decay curves https://www.bodyhackguide.co/tools/halflife ## You may also like ### Bromantane Nootropics View product (https://www.bodyhackguide.co/buy/bromantane) ### Cyclazodone Nootropics View product (https://www.bodyhackguide.co/buy/cyclazodone) ### Fladrafinil (CRL-40,941) Nootropics View product (https://www.bodyhackguide.co/buy/fladrafinil) ### Phenylpiracetam Nootropics View product (https://www.bodyhackguide.co/buy/phenylpiracetam) ## Related Compounds ### 9-Me-BC (9-Methyl-β-carboline) Nootropics Preclinical ### Aniracetam Nootropics Approved (Italy) ### Bemethyl (bemitil) Nootropics Approved (Russia) ### Bromantane Nootropics Russia Approved ### Cyclazodone Nootropics Preclinical ### Dihexa Nootropics Preclinical ## Side-by-Side Comparisons Compare Theacrine head-to-head: mechanism, half-life, dosing, safety, and vendor prices. 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Image: BodyHackGuide (https://www.bodyhackguide.co/assets/bodyhackguide-logo-DOzZNUyh.webp) ### BodyHackGuide Your biohacking research hub: compound pricing, brain health protocols, dosing tools, and vendor reviews. support@bodyhackguide.co Join our Discord: https://discord.gg/Mhq5UdRYBA r/BodyHackGuide on Reddit: https://reddit.com/r/BodyHackGuide #### Explore - Compare prices: https://www.bodyhackguide.co/compare - Vendors: https://www.bodyhackguide.co/vendors - Deals: https://www.bodyhackguide.co/deals - Coupons: https://www.bodyhackguide.co/coupons - Nootropics: https://www.bodyhackguide.co/nootropics - Brain health: https://www.bodyhackguide.co/brain-health - Blog: https://www.bodyhackguide.co/blog - Guides: https://www.bodyhackguide.co/guides #### Tools - Reconstitution: https://www.bodyhackguide.co/tools/reconstitution - Half-life visualizer: https://www.bodyhackguide.co/tools/halflife - COA reader: https://www.bodyhackguide.co/tools/coa - Cost calculator: https://www.bodyhackguide.co/tools/cost-calculator - Stack builder: https://www.bodyhackguide.co/stack-builder - All tools: https://www.bodyhackguide.co/tools #### Trust & vendors - Vendor directory: https://www.bodyhackguide.co/vendors - Trust scorecard: https://www.bodyhackguide.co/vendors/scorecard - Vendor trust badge: https://www.bodyhackguide.co/vendors/get-vetted - Scoring methodology: https://www.bodyhackguide.co/vendors/methodology - Peptide cheat sheet: https://www.bodyhackguide.co/guides/peptide-cheat-sheet-download #### Company - About: https://www.bodyhackguide.co/about - Affiliate disclosure: https://www.bodyhackguide.co/affiliate-disclosure - Editorial standards: https://www.bodyhackguide.co/editorial-standards - Creators: https://www.bodyhackguide.co/creators - Coaches: https://www.bodyhackguide.co/coaches - 1-on-1 coaching: https://www.bodyhackguide.co/coaching - Privacy: https://www.bodyhackguide.co/privacy - Terms: https://www.bodyhackguide.co/terms - Full site directory: https://www.bodyhackguide.co/site-directory **Affiliate Disclosure:** We rank every vendor on the same public, reproducible methodology (https://www.bodyhackguide.co/vendors/methodology), and we earn a commission from purchases made through some of our links at no extra cost to you. 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All rights reserved. · Terms (https://www.bodyhackguide.co/terms) · Privacy (https://www.bodyhackguide.co/privacy) ## Structured data ```json [ { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.bodyhackguide.co/" }, { "@type": "ListItem", "position": 2, "name": "Compounds", "item": "https://www.bodyhackguide.co/compare" }, { "@type": "ListItem", "position": 3, "name": "Theacrine" } ] }, { "@context": "https://schema.org", "@type": "MedicalWebPage", "name": "Theacrine", "description": "Theacrine (1,3,7,9-tetramethyluric acid) is a purine alkaloid structurally related to caffeine, found naturally in Camellia assamica var. kucha — a tea cultivar grown in southern China and northern Vietnam — and in smaller amounts in Cupuaçu (Theobroma grandiflorum) seeds. It shares caffeine's xanthine backbone but carries an extra methyl group at the 9-position and a 2,6,8-trione oxidation pattern, giving it pharmacology that overlaps caffeine's adenosine-receptor antagonism while diverging in dopaminergic tone and tolerance development. The most widely studied form in human trials is the patented ingredient TeaCrine, a ≥98% pure synthetic equivalent used in most commercial nootropic and pre-workout formulas. The practical appeal of theacrine in community use rests on three observations: first, healthy adults taking 200-300 mg daily report stimulation subjectively comparable to 150-200 mg caffeine — but with less jitter, less heart-rate elevation, and a slower onset (~60-90 minutes) that many users describe as \"smoother\" than caffeine's 20-40 minute peak. Second, an 8-week daily-dosing study (Taylor 2016) found no meaningful development of tolerance at 200-300 mg/day, no withdrawal signs on cessation, and no shifts in resting heart rate, blood pressure, liver enzymes, or complete blood count — a tolerance profile that genuinely differs from caffeine, where habitual use produces documented receptor upregulation and dependence within 1-2 weeks. Third, co-administration with caffeine produces synergy: pharmacokinetic data (He 2017) show caffeine roughly doubles theacrine plasma exposure (AUC), likely by slowing hepatic clearance, so 125 mg theacrine + 150 mg caffeine often outperforms either compound alone for perceived focus and endurance. Mechanism is not identical to caffeine. Like caffeine, theacrine antagonizes adenosine A1 and A2A receptors (the primary driver of wakefulness and reduced perception of effort), but rodent models (Feduccia 2012) additionally show dose-dependent increases in nucleus accumbens dopamine and locomotor activation that are blocked by both adenosine and dopamine-D1 antagonists — suggesting a dual adenosinergic-dopaminergic mechanism that caffeine does not fully replicate. This may explain the \"motivation\" quality users report and the absence of downregulation: chronic adenosine blockade alone should produce tolerance, but the concurrent dopaminergic signal appears to counterbalance receptor adaptation over an 8-week horizon. Human clinical data are limited but consistent. A double-blind crossover in habitual caffeine users (Ziegenfuss 2017) showed 300 mg theacrine improved reaction-time Bond-Lader alertness scores without the jitter-axis elevation that 150 mg caffeine produced in the same subjects. A separate 8-week safety and efficacy trial in 60 adults (Kuhman 2015) reported significant improvements in self-rated energy, focus, and concentration versus placebo at 200 and 300 mg/day with no adverse clinical findings. Community-tier evidence (r/Nootropics, forum writeups spanning 2015-2024) tends to converge on 100-200 mg as a mild-stim daily baseline, 250-300 mg for pre-workout or high-focus sessions, and 150 mg + 100 mg caffeine as a common synergy stack. Most users who transition from pure caffeine report similar energy with substantially less afternoon \"crash\" and easier sleep onset if taken before 2 PM. Practical considerations: theacrine is sold as a food-supplement ingredient in the US, EU, Australia, and most of Asia. It is NOT a controlled substance, not a prescription drug, and has no abuse liability signal in animal models. Quality matters — the vast majority of peer-reviewed human data used TeaCrine, a standardized ≥98% pure ingredient; some generic \"theacrine\" bulk powder has been found to be underdosed or contaminated with caffeine (independent COA testing, 2019-2021). Look for products that explicitly cite the TeaCrine trademark and provide a certificate of analysis. Theacrine is often stacked with L-theanine (100-200 mg) for an anxiolytic counterweight, with alpha-GPC (300 mg) for cholinergic contrast, and with dynamine (methylliberine, a faster-acting but shorter-duration analog) for a biphasic energy curve. It is not recommended for pregnancy, breastfeeding, uncontrolled hypertension, or anyone on MAOIs. The safety window at studied doses is wide, but the long-term profile beyond 8 weeks remains formally uncharacterized — community experience over 2-3 years of daily use suggests it holds up, but this is self-report data.", "lastReviewed": "2026-05-04T11:34:02.036+00:00", "url": "https://www.bodyhackguide.co/compound/theacrine", "author": { "@type": "Person", "name": "BioChonch", "url": "https://www.bodyhackguide.co/about", "jobTitle": "Founder & Lead Researcher", "sameAs": [ "https://reddit.com/r/BodyHackGuide", "https://reddit.com/r/BrainHackGuide", "https://reddit.com/r/Biohackingher" ], "worksFor": { "@type": "Organization", "name": "BodyHackGuide", "url": "https://www.bodyhackguide.co" } }, "reviewedBy": { "@type": "Person", "name": "BioChonch", "url": "https://www.bodyhackguide.co/about", "jobTitle": "Founder & Lead Researcher", "sameAs": [ "https://reddit.com/r/BodyHackGuide", "https://reddit.com/r/BrainHackGuide", "https://reddit.com/r/Biohackingher" ], "worksFor": { "@type": "Organization", "name": "BodyHackGuide", "url": "https://www.bodyhackguide.co" } }, "publisher": { "@type": "Organization", "name": "BodyHackGuide", "url": "https://www.bodyhackguide.co" }, "mainContentOfPage": { "@type": "WebPageElement", "cssSelector": "main" }, "about": { "@type": "Drug", "name": "Theacrine", "alternateName": [ "1,3,7,9-tetramethyluric acid", "TeaCrine", "1,3,7,9-tetramethyl-purine-2,6,8-trione" ], "description": "Theacrine (1,3,7,9-tetramethyluric acid) is a purine alkaloid structurally related to caffeine, found naturally in Camellia assamica var. kucha — a tea cultivar grown in southern China and northern Vietnam — and in smaller amounts in Cupuaçu (Theobroma grandiflorum) seeds. It shares caffeine's xanthine backbone but carries an extra methyl group at the 9-position and a 2,6,8-trione oxidation pattern, giving it pharmacology that overlaps caffeine's adenosine-receptor antagonism while diverging in dopaminergic tone and tolerance development. The most widely studied form in human trials is the patented ingredient TeaCrine, a ≥98% pure synthetic equivalent used in most commercial nootropic and pre-workout formulas. The practical appeal of theacrine in community use rests on three observations: first, healthy adults taking 200-300 mg daily report stimulation subjectively comparable to 150-200 mg caffeine — but with less jitter, less heart-rate elevation, and a slower onset (~60-90 minutes) that many users describe as \"smoother\" than caffeine's 20-40 minute peak. Second, an 8-week daily-dosing study (Taylor 2016) found no meaningful development of tolerance at 200-300 mg/day, no withdrawal signs on cessation, and no shifts in resting heart rate, blood pressure, liver enzymes, or complete blood count — a tolerance profile that genuinely differs from caffeine, where habitual use produces documented receptor upregulation and dependence within 1-2 weeks. Third, co-administration with caffeine produces synergy: pharmacokinetic data (He 2017) show caffeine roughly doubles theacrine plasma exposure (AUC), likely by slowing hepatic clearance, so 125 mg theacrine + 150 mg caffeine often outperforms either compound alone for perceived focus and endurance. Mechanism is not identical to caffeine. Like caffeine, theacrine antagonizes adenosine A1 and A2A receptors (the primary driver of wakefulness and reduced perception of effort), but rodent models (Feduccia 2012) additionally show dose-dependent increases in nucleus accumbens dopamine and locomotor activation that are blocked by both adenosine and dopamine-D1 antagonists — suggesting a dual adenosinergic-dopaminergic mechanism that caffeine does not fully replicate. This may explain the \"motivation\" quality users report and the absence of downregulation: chronic adenosine blockade alone should produce tolerance, but the concurrent dopaminergic signal appears to counterbalance receptor adaptation over an 8-week horizon. Human clinical data are limited but consistent. A double-blind crossover in habitual caffeine users (Ziegenfuss 2017) showed 300 mg theacrine improved reaction-time Bond-Lader alertness scores without the jitter-axis elevation that 150 mg caffeine produced in the same subjects. A separate 8-week safety and efficacy trial in 60 adults (Kuhman 2015) reported significant improvements in self-rated energy, focus, and concentration versus placebo at 200 and 300 mg/day with no adverse clinical findings. Community-tier evidence (r/Nootropics, forum writeups spanning 2015-2024) tends to converge on 100-200 mg as a mild-stim daily baseline, 250-300 mg for pre-workout or high-focus sessions, and 150 mg + 100 mg caffeine as a common synergy stack. Most users who transition from pure caffeine report similar energy with substantially less afternoon \"crash\" and easier sleep onset if taken before 2 PM. Practical considerations: theacrine is sold as a food-supplement ingredient in the US, EU, Australia, and most of Asia. It is NOT a controlled substance, not a prescription drug, and has no abuse liability signal in animal models. Quality matters — the vast majority of peer-reviewed human data used TeaCrine, a standardized ≥98% pure ingredient; some generic \"theacrine\" bulk powder has been found to be underdosed or contaminated with caffeine (independent COA testing, 2019-2021). Look for products that explicitly cite the TeaCrine trademark and provide a certificate of analysis. Theacrine is often stacked with L-theanine (100-200 mg) for an anxiolytic counterweight, with alpha-GPC (300 mg) for cholinergic contrast, and with dynamine (methylliberine, a faster-acting but shorter-duration analog) for a biphasic energy curve. It is not recommended for pregnancy, breastfeeding, uncontrolled hypertension, or anyone on MAOIs. The safety window at studied doses is wide, but the long-term profile beyond 8 weeks remains formally uncharacterized — community experience over 2-3 years of daily use suggests it holds up, but this is self-report data.", "activeIngredient": "Theacrine", "administrationRoute": "Oral", "mechanismOfAction": "Theacrine's primary pharmacodynamic signature is dual adenosine A1/A2A receptor antagonism, the same mechanism caffeine exploits to reduce perceived fatigue and suppress sleep drive. The 9-methyl and 2,6,8-trione modifications to the xanthine core shift its receptor affinity profile: rodent binding studies (Feduccia 2012) show theacrine binds A1 and A2A with lower affinity than caffeine on a per-molecule basis but produces comparable behavioral activation, suggesting differences in receptor kinetics or downstream coupling. The second mechanism — and the one that most clearly distinguishes theacrine from caffeine — is dopaminergic. In rodent microdialysis experiments, acute theacrine (24-48 mg/kg) increased nucleus accumbens dopamine and locomotor activity. This locomotor response was blocked by the dopamine-D1 antagonist SCH 23390 AND by the adenosine-receptor antagonist DPCPX, indicating the behavioral output requires BOTH adenosine blockade and D1 activation. Caffeine's locomotor effect is blocked only by adenosine antagonism. This divergence plausibly underlies theacrine's subjective \"motivation\" quality and may contribute to the absence of tolerance — because the dopaminergic signal maintains net stimulation even if adenosine-receptor sensitivity adapts. A third, lower-confidence mechanism involves mild adenosine triphosphate (ATP) conservation via inhibition of hepatic and adipose tissue breakdown pathways — the evidence for this is cell-culture tier and has not been verified in human tissue. Theacrine does NOT appreciably inhibit phosphodiesterase at physiological doses (unlike caffeine at high doses), does NOT block the GABA-A receptor, and does NOT significantly modulate serotonin or noradrenaline in available models. Pharmacokinetically, theacrine is orally bioavailable, peaks in plasma at ~60-90 minutes, and has a half-life of 16-20 hours in humans (He 2017) — substantially longer than caffeine's 5-hour half-life. Co-ingestion with caffeine increases theacrine AUC by roughly 100% (likely via shared CYP1A2 metabolism, with caffeine acting as a competitive substrate), while caffeine's own pharmacokinetics remain largely unchanged. This explains the widely-reported synergy of low-dose caffeine + theacrine stacks: caffeine sharpens the onset and extends theacrine's effective exposure without substantially increasing caffeine-specific side effects. Theacrine is metabolized primarily through hepatic demethylation, eventually converging on uric-acid-like terminal products. CYP1A2 is implicated but not exclusive; slow CYP1A2 metabolizers may experience extended duration and should adjust dosing accordingly.", "legalStatus": "Dietary supplement" } }, { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "How is theacrine different from caffeine?", "acceptedAnswer": { "@type": "Answer", "text": "Theacrine shares caffeine's adenosine A1/A2A antagonism but adds dopaminergic activation (Feduccia 2012, PMID 22771692) and has a 16-20 hour half-life versus caffeine's 5 hours. The practical differences: slower onset (60-90 minutes vs 20-40), less jitter and peripheral stimulation, no measurable tolerance at 8 weeks of daily use (Taylor 2016, PMID 27335344), and no withdrawal on cessation. Many users describe the subjective quality as 'motivation' or 'smooth energy' rather than caffeine's 'alertness.'" } }, { "@type": "Question", "name": "Does theacrine really not build tolerance?", "acceptedAnswer": { "@type": "Answer", "text": "The 8-week clinical data (Taylor 2016) show no measurable tolerance at 200-300 mg/day — no waning subjective effect, no cardiovascular adaptation, no need for dose escalation. Rodent locomotor data (Feduccia 2012) show the same pattern over 7 days where caffeine produces clear tolerance. The mechanism probably involves the dopaminergic signal counterbalancing adenosine-receptor desensitization. Long-term (>8 week) data are limited, so 'no tolerance ever' overstates the evidence — but across the best-characterized window, the tolerance resistance is real." } }, { "@type": "Question", "name": "What's the optimal dose?", "acceptedAnswer": { "@type": "Answer", "text": "100-200 mg in the morning is the community-tier sweet spot for most users. The clinical trials used 200-300 mg. Above 300 mg, effects tend to flatten or invert for many users, suggesting dopaminergic receptor saturation. Start at 100 mg for 1-2 weeks, then titrate up only if needed. When stacking with caffeine, reduce the theacrine dose by ~25% because caffeine doubles theacrine AUC (He 2017, PMID 28356193)." } }, { "@type": "Question", "name": "Can I take theacrine every day?", "acceptedAnswer": { "@type": "Answer", "text": "Yes, the 8-week daily dosing trial (Taylor 2016, PMID 27335344) found no tolerance, no adverse clinical findings, and no withdrawal. Most users take it daily without cycling. Some prefer 5 days on / 2 days off for subjective freshness or to preserve sleep on off-days, but there's no pharmacological reason the cycle is necessary." } }, { "@type": "Question", "name": "Will it mess up my sleep?", "acceptedAnswer": { "@type": "Answer", "text": "Almost certainly, if you take it after ~2 PM. The 16-20 hour half-life means a 200 mg morning dose still has ~40% of peak plasma at 10 PM. Take theacrine before noon only, and skip on days when uncompromised sleep is critical. No post-dose sleep aid effectively offsets it — the pharmacokinetics simply don't allow a same-day rescue." } }, { "@type": "Question", "name": "Does it work better with caffeine?", "acceptedAnswer": { "@type": "Answer", "text": "Often yes. Caffeine doubles theacrine plasma AUC (He 2017, PMID 28356193), adds fast-onset alertness, and the combination tested in Ziegenfuss 2017 (PMID 28280478) outperformed either monotherapy for composite attention. A common starter combination is 125 mg theacrine + 100 mg caffeine morning. Reduce your usual caffeine ~30% the first time you add theacrine to avoid cardiovascular overshoot." } }, { "@type": "Question", "name": "Is TeaCrine different from generic theacrine?", "acceptedAnswer": { "@type": "Answer", "text": "TeaCrine is a ≥98% pure branded ingredient (Compound Solutions) used in most published clinical trials. Generic bulk theacrine has shown variable purity in independent testing — some underdosed, some adulterated with caffeine. If the supplement bottle doesn't cite the TeaCrine trademark and provide a COA, quality is unreliable. The clinical efficacy data technically only cover TeaCrine, not generic material." } }, { "@type": "Question", "name": "Is theacrine legal and safe?", "acceptedAnswer": { "@type": "Answer", "text": "Theacrine is legal as a dietary-supplement ingredient in the US, EU, Canada, Australia, and most of Asia. It's not a controlled substance, not a prescription drug, and has no abuse liability signal in rodent or human studies. Safety at 100-300 mg/day is supported by 8 weeks of clinical exposure with no adverse findings. It is not on the 2024 WADA prohibited list, though competitive athletes should verify with their specific governing body." } }, { "@type": "Question", "name": "Who should avoid it?", "acceptedAnswer": { "@type": "Answer", "text": "Anyone pregnant or breastfeeding, under 18, with uncontrolled hypertension, arrhythmia, or on MAOIs. Relative cautions include treated hypertension, anxiety disorders (dopaminergic activation can be anxiogenic), bipolar disorder, active gout, and concurrent use of strong CYP1A2 inhibitors like fluvoxamine or ciprofloxacin. If you're on any daily medication, check with your prescriber before starting." } }, { "@type": "Question", "name": "What does theacrine stack well with?", "acceptedAnswer": { "@type": "Answer", "text": "The most evidence-backed pairing is caffeine (see above). L-theanine (100-200 mg) is the most common anxiolytic counterweight. Alpha-GPC (300 mg) adds cholinergic depth for cognitive sessions. Dynamine (100 mg, methylliberine) creates a biphasic energy curve. Rhodiola rosea layers an adaptogen on top. Avoid stacking with other stimulants (DMHA, DMAA, yohimbine) — the sympathomimetic load compounds without additive benefit." } } ] }, { "@context": "https://schema.org", "@type": "Organization", "@id": "https://www.bodyhackguide.co#organization", "name": "BodyHackGuide", "alternateName": "BHG", "url": "https://www.bodyhackguide.co", "logo": { "@type": "ImageObject", "url": "https://www.bodyhackguide.co/logo.png", "width": 512, "height": 512 }, "description": "Evidence-based research reference for peptides and nootropics. 273 compound profiles, interactive dosing calculators, vendor price comparisons, and trust-scored vendor reviews scored on a public, reproducible methodology applied to every vendor. We earn a commission on purchases through some of our links.", "foundingDate": "2024", "founder": { "@id": "https://www.bodyhackguide.co/about#person" }, "sameAs": [ "https://reddit.com/r/BodyHackGuide", "https://reddit.com/r/BrainHackGuide", "https://reddit.com/r/Biohackingher", "https://discord.gg/Mhq5UdRYBA" ], "knowsAbout": [ "Peptide research", "Nootropic research", "Biohacking", "Compound dosing", "Vendor transparency" ], "publishingPrinciples": "https://www.bodyhackguide.co/editorial-standards", "ethicsPolicy": "https://www.bodyhackguide.co/editorial-standards", "diversityPolicy": "https://www.bodyhackguide.co/editorial-standards" } ] ```