--- title: "N-Acetyl-Selank Dosage Guide [2026] | BodyHackGuide" url: https://www.bodyhackguide.co/guides/dosage/n-acetyl-selank description: "Complete N-Acetyl-Selank dosage guide with protocols, calculator, safety info, and where to buy. Updated for 2026." 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) Cognitive Preclinical (the N-acetyl analog has no dedicated studies); parent Selank has limited clinical use in Russia # N-Acetyl-Selank Dosage Guide: Protocols, Calculator & Safety Everything you need to know about N-Acetyl-Selank dosing: protocols, safety, and where to buy. Dose Range 100-900 Frequency Once or twice daily (intranasal); some advanced users split into 2-3 doses Cycle Length No established cycle. Parent Selank has been used in ~2-3 week clinical courses; community use of the analog is typically 2-4 weeks on, then a break. RUO. Half-Life Not established for the N-acetyl analog. Parent Selank has a very short plasma half-life (on the order of minutes, as expected for a small peptide) but produces behavioral effects lasting hours, attributed to active fragments and downstream enkephalin/GABA modulation. N-acetylation is claimed to slow N-terminal degradation and extend duration, but this is unquantified in published literature. Dosage Calculator Calculate exact dosing for N-Acetyl-Selank. https://www.bodyhackguide.co/tools/dosage ## Dosing Protocols Beginner Route is intranasal (nasal spray); N-Acetyl-Selank is not an injectable. There is NO established or clinically validated dose for the acetyl analog, so the following reflect cautious community practice, framed for research use only (RUO). Beginner: 100-250 mcg once daily, intranasal (typically 1 spray of a ~100-250 mcg/spray solution), taken in the morning. Start at the low end for several days to gauge tolerance before adjusting. The human evidence underpinning any expected effect belongs to Selank (https://www.bodyhackguide.co/compound/selank), not the acetyl analog - keep expectations modest. Standard 250-500 mcg/day intranasal, split into 1-2 doses (e.g., morning and early afternoon). Users typically run this in 2-4 week courses rather than continuously. No published pharmacokinetics exist for the acetyl analog, so any 'longer duration' expectation is theoretical. Research use only (RUO). Advanced Up to ~750-900 mcg/day intranasal, divided across 2-3 doses, is the upper end reported in community use. Higher intake has no added evidence base and raises the chance of nasal irritation or transient fatigue. Not a medical protocol; RUO. Avoid stacking with benzodiazepines or other GABAergic/CNS depressants without professional oversight, since parent Selank potentiates diazepam in animal models [PMID:28280289]. ## Side Effects & Safety In short Russian clinical trials, parent Selank was generally well tolerated with no serious adverse effects reported [PMID:18454096]. Reported or plausible effects (largely extrapolated to the analog): mild nasal irritation or congestion from the spray, transient drowsiness or fatigue, mild headache, and occasional altered taste or post-nasal drip. The long-term safety of N-Acetyl-Selank specifically has not been studied. Research use only. Contraindications Pregnancy and breastfeeding (untested). Known hypersensitivity to the peptide. Use caution - ideally under professional guidance - if combining with benzodiazepines, other GABAergic agents, opioids, or alcohol, because parent Selank modulates GABA/enkephalin signaling and potentiated diazepam in animal models [PMID:28280289][PMID:22550852]. Not a substitute for prescribed treatment of an anxiety disorder. Research use only; not for human consumption where prohibited. Check interactions with the Interaction Checker → (https://www.bodyhackguide.co/tools/interaction-checker) ## Additional Notes Doses are in micrograms (mcg), not milligrams. N-Acetyl-Selank is used intranasally, not injected. All figures are extrapolated from Selank (https://www.bodyhackguide.co/compound/selank) and community reports because the acetylated analog has no published dosing studies. Nasal sprays vary in concentration (commonly ~100-250 mcg per spray), so verify the per-spray dose of your specific product. Research use only. Where to Buy N-Acetyl-Selank Compare 2 listings across 1 vendor, from $79.99 https://www.bodyhackguide.co/compound/n-acetyl-selank ## Frequently Asked Questions What is the recommended N-Acetyl-Selank dosage? The typical dose range for N-Acetyl-Selank is 100-900. It is usually administered Once or twice daily (intranasal); some advanced users split into 2-3 doses. Always start with the lowest effective dose. How often should I take N-Acetyl-Selank? Does N-Acetyl-Selank need to be cycled? Yes, typical cycle length is No established cycle. Parent Selank has been used in ~2-3 week clinical courses; community use of the analog is typically 2-4 weeks on, then a break. RUO.. What are N-Acetyl-Selank side effects? Where can I buy N-Acetyl-Selank? Compare 2 listings from 1 vendor on our price comparison page, starting from $79.99. N-Acetyl-Selank Full Profile Research data, mechanisms, and pricing https://www.bodyhackguide.co/compound/n-acetyl-selank Interaction Checker Check drug & compound interactions https://www.bodyhackguide.co/tools/interaction-checker ## Related Dosage Guides All Guides (https://www.bodyhackguide.co/guides) ### Noopept + Choline Chloride Blend Cognitive · Dosage Guide https://www.bodyhackguide.co/guides/dosage/noopept-choline-blend Free 2026 Peptide Cheat Sheet (PDF) 38 compounds and blends: vial sizes, BAC water volumes, dosing ranges and bloodwork markers. Download Free (https://www.bodyhackguide.co/guides/peptide-cheat-sheet-download) 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. 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": "Article", "headline": "N-Acetyl-Selank Dosage Guide [2026]", "description": "Complete N-Acetyl-Selank dosage guide with protocols, calculator, safety info, and where to buy. 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It is usually administered Once or twice daily (intranasal); some advanced users split into 2-3 doses. Always start with the lowest effective dose." } }, { "@type": "Question", "name": "How often should I take N-Acetyl-Selank?", "acceptedAnswer": { "@type": "Answer", "text": "Once or twice daily (intranasal); some advanced users split into 2-3 doses" } }, { "@type": "Question", "name": "Does N-Acetyl-Selank need to be cycled?", "acceptedAnswer": { "@type": "Answer", "text": "Yes, typical cycle length is No established cycle. Parent Selank has been used in ~2-3 week clinical courses; community use of the analog is typically 2-4 weeks on, then a break. RUO.." } }, { "@type": "Question", "name": "What are N-Acetyl-Selank side effects?", "acceptedAnswer": { "@type": "Answer", "text": "In short Russian clinical trials, parent Selank was generally well tolerated with no serious adverse effects reported [PMID:18454096]. Reported or plausible effects (largely extrapolated to the analog): mild nasal irritation or congestion from the spray, transient drowsiness or fatigue, mild headache, and occasional altered taste or post-nasal drip. The long-term safety of N-Acetyl-Selank specifically has not been studied. Research use only." } }, { "@type": "Question", "name": "Where can I buy N-Acetyl-Selank?", "acceptedAnswer": { "@type": "Answer", "text": "Compare 2 listings from 1 vendor on our price comparison page, starting from $79.99." } } ] }, { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.bodyhackguide.co/" }, { "@type": "ListItem", "position": 2, "name": "Guides", "item": "https://www.bodyhackguide.co/guides" }, { "@type": "ListItem", "position": 3, "name": "Dosage Guides", "item": "https://www.bodyhackguide.co/guides" }, { "@type": "ListItem", "position": 4, "name": "N-Acetyl-Selank Dosage", "item": "https://www.bodyhackguide.co/guides/dosage/n-acetyl-selank" } ] } ] ```