Snap-8
Snap-8 (acetyl octapeptide-3)
What is Snap-8?
Snap-8: Topical cosmetic peptide (Ac-EEMQRRAD-NH2), an 8-residue SNAP-25 fragment extending Argireline (acetyl hexapeptide-8), claimed to reduce expression-line muscle contraction by interfering with SNARE complex assembly ('topical Botox-like'). The sources cited here most often discuss it for: Softer expression lines; Finer lines in multi-peptide serums; Wrinkle claims, manufacturer only. Evidence label: Early human.
- Type
- Peptide
- Family
- Skin, Hair & Tan
- Evidence label
- Early human (3 of 5)
- Regulatory status
- Snap-8 (acetyl octapeptide-3) is listed as a cosmetic ingredient in the EU and is not an approved drug; in the US, cosmetic ingredients need no FDA premarket approval, but a product intended to affect the body's structure or function is a drug, and no FDA drug approval for Snap-8 was found.
- Goals discussed
- Skin & Glow
- Also called
- SNAP-8, Snap8, snap 8, acetyl octapeptide-3, acetyl glutamyl heptapeptide-3, acetyl octapeptide-1, Ac-EEMQRRAD-NH2
- Last reviewed
- 2026-10-11
- Topical cosmetic peptide (Ac-EEMQRRAD-NH2), an 8-residue SNAP-25 fragment extending Argireline (acetyl hexapeptide-8), claimed to reduce expression-line muscle contraction by interfering with SNARE complex assembly ('topical Botox-like'); cosmetic ingredient only, not a drug, never studied alone or by injection.12
Regulatory status Snap-8 (acetyl octapeptide-3) is listed as a cosmetic ingredient in the EU and is not an approved drug; in the US, cosmetic ingredients need no FDA premarket approval, but a product intended to affect the body's structure or function is a drug, and no FDA drug approval for Snap-8 was found. 2
The present study demonstrated that the fabricated DA-MNP exhibited fast acting on deep wrinkles and enhanced anti-aging efficacy, with no skin safety concern.
Split-face study in 24 adults of an overnight microneedle eye patch combining acetyl octapeptide-3 with other actives (Ann Dermatol, 2024); effect cannot be attributed to Snap-8 alone.
What is Snap-8 researched for?
The three outcomes most discussed for Snap-8 in the sources below, as those sources report them. humanpeptides.fyi makes no claims of its own: a listed benefit can be unproven or can have failed in trials, and the label on each line says which.
Finer lines in multi-peptide serums
- Multi-peptide serums/patches containing it improved fine lines, hydration, firmness over 12-24 weeksuncontrolled human studies, manufacturer-run; can't attribute to Snap-81
What do researchers and users say about Snap-8?
It’s pretty nice for tightening the skin temporarily and making it hard for me to raise my brows. I like it for when I am going out.
Unverified self-report on a skincare product containing Snap-8; other users in the thread saw no improvement.
What side effects of Snap-8 are reported?
- Topical use generally considered low-risk but no expert-panel safety assessment exists; no injection, PK or systemic toxicology data, so injectable 'research' use is unsupported1
- A temporary tingly, stiff forehead that was hard to move after first use was reported by one user of a research-grade vial applied topically.anecdotal6
- Reduced ability to raise the eyebrows was described by a user as a temporary effect of a Snap-8 product.anecdotal6
What do peptide guides say about Snap-8?
- PepEdHub PepEdHub says Snap-8 mimics the N-terminal end of SNAP-25, competing within the SNARE complex to dampen nerve signals to facial muscles, hence its pitch as a topical botulinum toxin alternative. 7
- Vialog Vialog found no published skin permeation, binding or SNARE-assembly study of Snap-8 itself; every human study uses it as one active among several, so its individual effect is unmeasured. 1
- PubMed A 2024 split-face study in 24 adults found an overnight microneedle eye patch combining Snap-8 with vitamin C and other actives improved eye wrinkles, elasticity and lifting versus a plain hyaluronic acid patch. 5
What does the research say, system by system?
Body & tissues2
Cells & mitochondria1
How strong is the evidence for Snap-8?
Cosmetic only: a few multi-ingredient human skin studies + manufacturer claims + anecdotes; never tested alone (thin data)
Small, short, old, unblinded or single-group human studies. How tiers work
Questions about Snap-8
What is Snap-8?
Topical cosmetic peptide (Ac-EEMQRRAD-NH2), an 8-residue SNAP-25 fragment extending Argireline (acetyl hexapeptide-8), claimed to reduce expression-line muscle contraction by interfering with SNARE complex assembly ('topical Botox-like').
Is Snap-8 FDA-approved?
Snap-8 (acetyl octapeptide-3) is listed as a cosmetic ingredient in the EU and is not an approved drug; in the US, cosmetic ingredients need no FDA premarket approval, but a product intended to affect the body's structure or function is a drug, and no FDA drug approval for Snap-8 was found.
What is Snap-8 researched for?
The sources cited on this page most often discuss three outcomes: Softer expression lines; Finer lines in multi-peptide serums; Wrinkle claims, manufacturer only. Each line above shows what the source reports and how strong that evidence is.
What side effects of Snap-8 are reported?
Reported in the cited sources: Topical use generally considered low-risk but no expert-panel safety assessment exists; no injection, PK or systemic toxicology data, so injectable 'research' use is unsupported; A temporary tingly, stiff forehead that was hard to move after first use was reported by one user of a research-grade vial applied topically; Reduced ability to raise the eyebrows was described by a user as a temporary effect of a Snap-8 product. The list is not complete, and few listed risks does not mean a compound is safe.
How strong is the evidence for Snap-8?
Evidence label: Early human. Cosmetic only: a few multi-ingredient human skin studies + manufacturer claims + anecdotes; never tested alone (thin data).
What else is Snap-8 called?
Names used for it include SNAP-8, Snap8, snap 8, acetyl octapeptide-3, acetyl glutamyl heptapeptide-3, acetyl octapeptide-1, Ac-EEMQRRAD-NH2.
Does humanpeptides.fyi recommend Snap-8?
No. humanpeptides.fyi makes no claims and no recommendations of its own. It summarizes and links to what others have published and posted. Nothing here is medical advice; talk to a licensed clinician.