Cosmetic & Skin

SNAP-8

Also known as Acetyl Octapeptide-3 · Acetyl Glutamyl Heptapeptide-3

Emerging researchTopicalSNAP-8 (Acetyl Octapeptide-3) is not an FDA-approved drug and has not been submitted for pharmaceutical approval. It is marketed and regulated as a cosmetic ingredient, appearing in the EU CosIng database (function: skin conditioning), and is permitted in cosmetic formulations in the US, EU, and most international markets under standard cosmetic-ingredient rules — meaning it is not reviewed for drug-level efficacy. It is not a compounded pharmaceutical and is not associated with 503A/503B compounding pathways. It is not specifically named on the WADA Prohibited List; as a topical cosmetic peptide it falls outside the typical doping categories, though athletes should verify any specific product with their anti-doping authority.

SNAP-8 (Acetyl Octapeptide-3) is an eight-amino-acid synthetic peptide and a larger analog of Acetyl Hexapeptide-8 (Argireline), used as a topical ingredient in anti-aging cosmetic formulations such as serums and eye creams. It is proposed to mimic the N-terminal segment of the SNAP-25 protein, competitively interfering with assembly of the SNARE complex and thereby reducing release of neurotransmitters such as acetylcholine at the neuromuscular junction; unlike botulinum toxin, this proposed interaction does not cleave proteins and is described as reversible and far weaker. It appears in cosmetic ingredient databases (with a skin-conditioning function) and is marketed for the appearance of dynamic expression lines. Most efficacy data — including reported reductions in wrinkle depth in short-duration cosmetic studies — derive from manufacturer-sponsored research, with limited independent academic study that tends to report more conservative outcomes. As a result, the evidence base is best characterized as early and predominantly industry-generated rather than established through independent clinical trials.

Studied / used for

Investigated for the topical appearance of facial expression lines and dynamic wrinkles
Studied for the look of forehead and periorbital (eye-area) lines
Investigated for measures of skin smoothness and elasticity in cosmetic-use studies
Studied as a topical alternative concept to injectable neuromodulators for expression-line appearance

Commonly reported side effects

Mild skin irritation commonly reported, more often noted in reports involving higher-concentration formulations
Redness commonly reported at the application site
Temporary local skin sensitivity reported by some individuals
Patch-test reactions reported by those with very sensitive skin

Emerging research. Active research; human evidence still developing. This reflects the strength of the research base, not effectiveness or a recommendation.

Not medical advice.

This is an educational reference. Peptalk does not recommend, prescribe, endorse, or rate any compound, and provides no dosing information. Do not start, stop, or change any peptide, hormone, supplement, or therapy based on this page. All clinical decisions must be made with your licensed healthcare provider.

← Back to all compounds