--- title: "DSIP vs N-Acetyl-Selank: Side-by-Side Comparison (2026)" url: https://www.bodyhackguide.co/compare/dsip-vs-n-acetyl-selank description: "Compare DSIP vs N-Acetyl-Selank 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) # DSIP (Delta Sleep-Inducing Peptide) vs N-Acetyl-Selank Side-by-side comparison of DSIP (Delta Sleep-Inducing Peptide) and N-Acetyl-Selank: mechanism, half-life, dose range, safety profile, and vendor pricing. DSIP (Delta Sleep-Inducing Peptide) from $34.99 N-Acetyl-Selank from $79.99 ## Price snapshot ### DSIP (Delta Sleep-Inducing Peptide) Current low $34.99 current listings 7-day low — not enough history yet 30-day low — not enough history yet 30-day change — not enough history yet ### N-Acetyl-Selank 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 ## DSIP (Delta Sleep-Inducing Peptide) Delta sleep-inducing peptide (DSIP) is a nonapeptide — a 9-amino-acid neuropeptide with sequence Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu (WAGGDASGE, 848 Da molecular weight) — first isolated in 1977 from the cerebral venous… **Lowest listed price:** $34.99 across 11 listings Full DSIP (Delta Sleep-Inducing Peptide) profile (https://www.bodyhackguide.co/compound/dsip) ## N-Acetyl-Selank N-Acetyl-Selank is the N-terminally acetylated analog of Selank, a tuftsin-derived heptapeptide used intranasally for its reported anxiolytic and nootropic effects. The acetyl group is claimed to improve stability and… **Lowest listed price:** $79.99 across 2 listings Full N-Acetyl-Selank profile (https://www.bodyhackguide.co/compound/n-acetyl-selank) ## Side-by-side comparison | Attribute | DSIP (Delta Sleep-Inducing Peptide) | N-Acetyl-Selank | | --- | --- | --- | | Category | Cognition, Mood & Neuroprotection | Cognitive | | Research Stage | Research Use Only | Preclinical (the N-acetyl analog has no dedicated studies); parent Selank has limited clinical use in Russia | | Mechanism of Action | Primary Mechanism: Uncharacterized Direct Receptor Binding After more than four decades of research, DSIP's primary molecular target remains unknown. No specific receptor has been cloned, characterized, or reproducibly identified as the primary binding site… | N-Acetyl-Selank is the N-terminally acetylated analog of Selank, a synthetic heptapeptide (Thr-Lys-Pro-Arg-Pro-Gly-Pro) derived from the endogenous immunopeptide tuftsin (Thr-Lys-Pro-Arg) with a C-terminal Pro-Gly-Pro tail added to slow enzymatic breakdown.… | | Half-Life | ~7-15 minutes (IV; plasma clearance is rapid, though subjective sleep effects can outlast measurable blood levels) | 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. | | Typical Dose Range | 100–300 mcg per injection | 100-900 mcg | | Dosing Frequency | Once daily, 30–60 minutes before bedtime | Once or twice daily (intranasal); some advanced users split into 2-3 doses | | Administration | Subcutaneous, Intramuscular, Intranasal | — | | Side Effects | Overall Safety Profile DSIP has one of the cleanest safety profiles of any peptide in the research chemical space. In 40+ years of research and clinical use, no serious adverse events have been reported in controlled trials or large case series. The compound… | 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,… | | Molecular Weight | 848.8 Da | ~793.9 g/mol (theoretical: Selank ~751.9 g/mol + N-terminal acetyl, ~+42). Approximate molecular formula C35H59N11O10. | | Common Vial Sizes | 2mg, 5mg | — | ## Price History 8 data points - BM - Half Nattys - LB - Ion Peptide - OF - Disguised Alpha - BHG Labs ## Price tracking Tracking N-Acetyl-Selank prices since September 5, 2026. Trend chart unlocks once we have price snapshots from more than one day. ### DSIP (Delta Sleep-Inducing Peptide): potential benefits - Sleep quality support - Stress reduction - Cortisol/HPA modulation - Alcohol & opioid withdrawal support - Circadian regulation ### N-Acetyl-Selank: potential benefits - Anxiolytic (calming) effects - the most-studied action of parent Selank, including a Russian clinical trial in generalized anxiety disorder [PMID:18454096] - Nootropic / cognitive support - reported attention and memory benefits in rodent models, linked to BDNF changes [PMID:31625062] - Stress resilience reported without the sedation, tolerance, or dependence typically seen with benzodiazepines (preclinical framing) [PMID:30255741] - Possible support during withdrawal states (alcohol, opioid) in animal models [PMID:24913576][PMID:36322304] - Claimed longer duration vs. plain Selank from N-terminal acetylation - a community/vendor claim not verified in published data ## Frequently asked ### What's the difference between DSIP (Delta Sleep-Inducing Peptide) and N-Acetyl-Selank? DSIP (Delta Sleep-Inducing Peptide) is a cognition, mood & neuroprotection that primary mechanism: uncharacterized direct receptor binding after more than four decades of research, dsip's primary molecular target remains unknown. no specific receptor has been…. N-Acetyl-Selank is a cognitive that n-acetyl-selank is the n-terminally acetylated analog of selank, a synthetic heptapeptide (thr-lys-pro-arg-pro-gly-pro) derived from the endogenous immunopeptide tuftsin…. The two differ in mechanism, half-life (~7-15 minutes (IV; plasma clearance is rapid, though subjective sleep effects can outlast measurable blood levels) vs 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.), and typical dose range. ### Which has the longer half-life, DSIP (Delta Sleep-Inducing Peptide) or N-Acetyl-Selank? DSIP (Delta Sleep-Inducing Peptide) has a half-life of ~7-15 minutes (IV; plasma clearance is rapid, though subjective sleep effects can outlast measurable blood levels). N-Acetyl-Selank has a half-life of 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.. Longer half-lives generally mean less frequent dosing but slower on/off kinetics. ### Which is cheaper, DSIP (Delta Sleep-Inducing Peptide) or N-Acetyl-Selank? Lowest listed price on BodyHackGuide: DSIP (Delta Sleep-Inducing Peptide) from $34.99, N-Acetyl-Selank from $79.99. Prices are pulled from the vendor listings tracked on BHG and change frequently. See the compare tables on each compound page for the current set of offers. ### Can you stack DSIP (Delta Sleep-Inducing Peptide) and N-Acetyl-Selank? Stacking depends on mechanism overlap, safety profile, and goals. DSIP (Delta Sleep-Inducing Peptide) and N-Acetyl-Selank 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. DSIP (Delta Sleep-Inducing Peptide) prices: https://www.bodyhackguide.co/compound/dsip?tab=prices N-Acetyl-Selank prices: https://www.bodyhackguide.co/compound/n-acetyl-selank?tab=prices Compare all compounds: https://www.bodyhackguide.co/compare ### Before you buy DSIP (Delta Sleep-Inducing Peptide) or N-Acetyl-Selank 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 N Acetyl Selank vs N Acetyl Semax: https://www.bodyhackguide.co/compare/n-acetyl-selank-vs-n-acetyl-semax DSIP vs Melatonin: https://www.bodyhackguide.co/compare/dsip-vs-melatonin **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). 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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": "Compare", "item": "https://www.bodyhackguide.co/compare" }, { "@type": "ListItem", "position": 3, "name": "DSIP (Delta Sleep-Inducing Peptide) vs N-Acetyl-Selank" } ] }, { "@context": "https://schema.org", "@type": "WebPage", "name": "DSIP vs N-Acetyl-Selank: Side-by-Side Comparison (2026)", "description": "Compare DSIP vs N-Acetyl-Selank side by side. We earn a commission on some vendor links. 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