SNAP-8

SNAP-8, also known as Acetyl Octapeptide-3, is a peptide made of eight amino acids. Its name refers to SNAP-25, a neuronal protein of the SNARE machinery. This connection makes the short molecule interesting for cosmetic research: a defined, small structure meets a cellular process that controls vesicle fusion.

Eight amino acids, clearly distinct from SNAP-25

The NIH/NCATS GSRS entry lists SNAP-8 as a brand synonym of Acetyl Octapeptide-3 and classifies the reference substance as a peptide (GSRS entry for Acetyl Octapeptide-3). The name describes an acetylated peptide made of eight amino acid residues. The acetyl group is part of the substance's identity.

SNAP-8 is clearly distinct from SNAP-25. SNAP-25 is a neuronal protein associated with the SNARE machinery. The 25 is part of the protein's name and does not indicate the length of SNAP-8. SNAP-8 remains a separate octapeptide with eight amino acid residues.

The short chain is typical of cosmetic peptides. It can be incorporated into different formulations and remains structurally straightforward. Precisely this combination of a defined structure and a biological reference makes SNAP-8 attractive for formulation research.

The SNARE connection: vesicle fusion and neurotransmitters

SNARE proteins mediate the fusion of vesicles with the cell membrane. At nerve endings, this process is a prerequisite for the release of neurotransmitters. SNAP-25 is part of this machinery and is the reference behind SNAP-8's name.

The cosmetic interest in this biology is closely tied to expression lines. Repeated facial muscle movements shape lines, and the idea of modulating signal transmission at the neuromuscular junction is a natural research focus. SNAP-8 is not botulinum toxin, but an octapeptide.

The human studies examine complete formulations and their effect on the skin's appearance. The focus is therefore on the formulation as a whole and on the delivery system.

Two human studies with microneedle patches

Both investigations tested hyaluronic acid microneedles in which Acetyl Octapeptide-3 was combined with other ingredients. The differences in design are important for interpretation:

The twelve-week investigation assessed the complete patch (2019 clinical study), while the 2024 comparative study tested the active combination against hyaluronic acid-only microneedles (2024 comparative study). In both cases, the formulation as a whole is the focus.

Why the delivery system is part of the result

The stratum corneum is an effective barrier. Microneedles penetrate it and enable distribution of the formulation in superficial skin layers. In both studies, the patch was therefore not just a carrier but part of the tested system. The results apply to the tested patch and not automatically to any other delivery format.

What the combination data mean for SNAP-8

Both studies are relevant to cosmetic research because they test real formulations under study conditions. They show that Acetyl Octapeptide-3 can be integrated into microneedle delivery systems and, in combination with hyaluronic acid and other ingredients, can be part of a tested cosmetic concept.

The studies do not test SNAP-8 in isolation. The reported improvements relate to the complete formulation and the delivery system; an independent effect of the peptide is therefore not established. For cosmetics, this formulation context is interesting because it shows how the peptide is used in a real product concept.

Buy SNAP-8: 10 mg per vial

The shop offers SNAP-8 in this variant for research. The figure refers to the peptide amount per vial, not a concentration. Buy SNAP-8 now and view the variant in the shop.