--- title: "Piracetam vs Dihexa: Side-by-Side Comparison (2026)" url: https://www.bodyhackguide.co/compare/piracetam-vs-dihexa description: "Compare Piracetam vs Dihexa side by side. We earn a commission on some vendor links. Mechanism, half-life, dose range, side effects and 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) # Piracetam vs Dihexa Side-by-side comparison of Piracetam and Dihexa: mechanism, half-life, dose range, safety profile, and vendor pricing. Piracetam: no price on file Dihexa from $79.99 ## Price snapshot ### Piracetam Current low — 7-day low — not enough history yet 30-day low — not enough history yet 30-day change — not enough history yet ### Dihexa Current low $79.99 current listings 7-day low — not enough history yet 30-day low — not enough history yet 30-day change — not enough history yet ## Piracetam Piracetam is the prototypical nootropic — the compound that inaugurated an entire class of cognitive enhancement drugs and gave the category its name. It was synthesized in 1964 by Romanian-born Belgian chemist Corneliu… No vendor price on file. Full Piracetam profile (https://www.bodyhackguide.co/compound/piracetam) ## Dihexa Dihexa is a synthetic peptide analogue of the angiotensin IV metabolite LVV-hemorphin-7, developed at Washington State University. It is considered one of the most potent cognitive enhancers ever tested in animal models… **Lowest listed price:** $79.99 across 3 listings Full Dihexa profile (https://www.bodyhackguide.co/compound/dihexa) ## Side-by-side comparison | Attribute | Piracetam | Dihexa | | --- | --- | --- | | Category | Nootropics | Nootropics | | Research Stage | Preclinical | Preclinical | | Mechanism of Action | Piracetam's mechanism of action is the subject of 50+ years of research that has identified several pharmacologic effects without converging on a single primary mechanism. The compound is a cyclic derivative of GABA but has minimal direct GABAergic activity —… | Dihexa is a small-molecule analog derived from angiotensin IV (AngIV). It retains the Tyr-Ile core of Nle1-AngIV, with an N-terminal hexanoic acid cap and a C-terminal 6-aminohexanoic amide that give it metabolic stability and blood-brain-barrier penetration.… | | Half-Life | — | 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. | | Typical Dose Range | — | 5 to 40 mg oral per day (anecdotal range; no established human dose) | | Dosing Frequency | — | Once daily (oral), typically in the morning | | Administration | — | Oral, Intranasal, Subcutaneous | | Side Effects | Piracetam's side effect profile is among the most favorable in all of pharmacology, which is one of the reasons Giurgea identified it as the prototype for a new class of cognitive enhancement drugs with high safety margins. In 50+ years of clinical use across… | No controlled human safety data. Anecdotal user reports include headache, fatigue, irritability or anxiety, insomnia, and vivid dreams, usually at higher doses. The most serious concern is theoretical rather than reported: because dihexa acts on the HGF/c-Met… | | Molecular Weight | — | 504.7 g/mol | | Common Vial Sizes | — | 50mg, 100mg | ## Price History 2 data points ### Piracetam: potential benefits - No structured benefit list published. ### Dihexa: potential benefits - Synaptogenesis: formation of new dendritic spines and functional synapses (preclinical) - Memory and spatial-learning support in rodent models - Potential research application in Alzheimer's and other neurodegenerative disease models - HGF/c-Met and PI3K/Akt-linked neuroplasticity (mechanism proposed; key paper retracted) ## Frequently asked ### What's the difference between Piracetam and Dihexa? Piracetam is a nootropics that piracetam's mechanism of action is the subject of 50+ years of research that has identified several pharmacologic effects without converging on a single primary mechanism. the…. Dihexa is a nootropics that dihexa is a small-molecule analog derived from angiotensin iv (angiv). it retains the tyr-ile core of nle1-angiv, with an n-terminal hexanoic acid cap and a c-terminal…. The two differ in mechanism, half-life (not reported vs 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.), and typical dose range. ### Which has the longer half-life, Piracetam or Dihexa? Piracetam has a half-life of not reported. Dihexa has a half-life of 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.. Longer half-lives generally mean less frequent dosing but slower on/off kinetics. ### Can you stack Piracetam and Dihexa? Stacking depends on mechanism overlap, safety profile, and goals. Piracetam and Dihexa should only be stacked after reviewing each compound's individual protocol page, side effect profile, and any published interaction data. Use the BodyHackGuide stack builder for a structured review before combining research compounds. ## See current vendor prices Listings from the vendors we track. Prices change often, so check the vendor before you buy. Piracetam prices: https://www.bodyhackguide.co/compound/piracetam?tab=prices Dihexa prices: https://www.bodyhackguide.co/compound/dihexa?tab=prices Compare all compounds: https://www.bodyhackguide.co/compare ### Before you buy Piracetam or Dihexa Check the vendor trust score. Every supplier we track is rated 0-100 on COA verification, payment transparency, shipping, reviews, and listings: one published, reproducible methodology, applied to every vendor. View Vendor Scorecard (https://www.bodyhackguide.co/vendors/scorecard) ## Related comparisons Noopept vs Piracetam: https://www.bodyhackguide.co/compare/noopept-vs-piracetam Phenylpiracetam vs Piracetam: https://www.bodyhackguide.co/compare/phenylpiracetam-vs-piracetam Dihexa vs Noopept: https://www.bodyhackguide.co/compare/dihexa-vs-noopept **Research use only.** BodyHackGuide is a research and price-comparison reference. The compounds discussed on this page are not approved by the FDA for human consumption and are sold strictly for laboratory research. Prices shown are pulled from vendor listings tracked on BHG and are subject to change. Every vendor is ranked on the same public, reproducible methodology. See editorial standards (https://www.bodyhackguide.co/editorial-standards) and affiliate disclosure (https://www.bodyhackguide.co/affiliate-disclosure). BodyHackGuide (https://www.bodyhackguide.co/) 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 **Affiliate Disclosure:** We rank every vendor on the same public, reproducible methodology (https://www.bodyhackguide.co/vendors/methodology). Full details in our affiliate disclosure (https://www.bodyhackguide.co/affiliate-disclosure). **Research Disclaimer:** All compounds listed are for laboratory and research purposes only. Not for human consumption. This site does not sell or ship any products. Always consult a qualified healthcare professional and comply with local regulations. © 2026 BodyHackGuide. 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": "Compare", "item": "https://www.bodyhackguide.co/compare" }, { "@type": "ListItem", "position": 3, "name": "Piracetam vs Dihexa" } ] }, { "@context": "https://schema.org", "@type": "WebPage", "name": "Piracetam vs Dihexa: Side-by-Side Comparison (2026)", "description": "Compare Piracetam vs Dihexa side by side. We earn a commission on some vendor links. Mechanism, half-life, dose range, side effects and prices.", "url": "https://www.bodyhackguide.co/compare/piracetam-vs-dihexa", "dateModified": "2026-10-28", "isPartOf": { "@type": "WebSite", "name": "BodyHackGuide", "url": "https://www.bodyhackguide.co" }, "mainEntity": { "@type": "ItemList", "itemListElement": [ { "@type": "ListItem", "position": 1, "item": { "@type": "Product", "name": "Piracetam", "description": "Piracetam is the prototypical nootropic — the compound that inaugurated an entire class of cognitive enhancement drugs and gave the category its name. It was synthesized in 1964 by Romanian-born Belgian chemist Corneliu Giurgea at UCB Pharmaceuticals (Union Chimique Belge) as a chemical derivative…", "url": "https://www.bodyhackguide.co/compound/piracetam", "category": "Nootropics" } }, { "@type": "ListItem", "position": 2, "item": { "@type": "Product", "name": "Dihexa", "description": "Dihexa is a synthetic peptide analogue of the angiotensin IV metabolite LVV-hemorphin-7, developed at Washington State University. It is considered one of the most potent cognitive enhancers ever tested in animal models — reportedly 7 orders of magnitude more potent than BDNF at improving cognitive…", "url": "https://www.bodyhackguide.co/compound/dihexa", "category": "Nootropics", "offers": { "@type": "AggregateOffer", "lowPrice": "79.99", "priceCurrency": "USD", "offerCount": 3 } } } ] } }, { "@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" }, { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "What's the difference between Piracetam and Dihexa?", "acceptedAnswer": { "@type": "Answer", "text": "Piracetam is a nootropics that piracetam's mechanism of action is the subject of 50+ years of research that has identified several pharmacologic effects without converging on a single primary mechanism. the…. Dihexa is a nootropics that dihexa is a small-molecule analog derived from angiotensin iv (angiv). it retains the tyr-ile core of nle1-angiv, with an n-terminal hexanoic acid cap and a c-terminal…. The two differ in mechanism, half-life (not reported vs 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.), and typical dose range." } }, { "@type": "Question", "name": "Which has the longer half-life, Piracetam or Dihexa?", "acceptedAnswer": { "@type": "Answer", "text": "Piracetam has a half-life of not reported. Dihexa has a half-life of 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.. Longer half-lives generally mean less frequent dosing but slower on/off kinetics." } }, { "@type": "Question", "name": "Can you stack Piracetam and Dihexa?", "acceptedAnswer": { "@type": "Answer", "text": "Stacking depends on mechanism overlap, safety profile, and goals. Piracetam and Dihexa should only be stacked after reviewing each compound's individual protocol page, side effect profile, and any published interaction data. Use the BodyHackGuide stack builder for a structured review before combining research compounds." } } ] } ] ```