Ac
Acetyl Octapeptide-3
Acetyl Octapeptide-3Active
A lab-made peptide sold for expression lines. Independent tests of it on its own are few.
What it does
It’s sold on the same idea as acetyl hexapeptide-8 (Argireline): calming the signals that tighten the face’s small muscles. The EU lists it only as holding water and conditioning skin.
The EU’s ingredient database lists it as a humectant (helps hold in moisture).European Commission, CosIng (© European Union, CC BY 4.0) · uses put in plain words by Drop ↗
Also known as
snap-8
Browse all 924 ingredients — grouped by what they do, each with whatever evidence we can cite.
This page is public so a shared ingredient card always has its sources behind it — and so you can check them without an account.
Want more like this?
Every evidence-based flag cites its source, Drop tells you when your routine is complete, and it helps you simplify — instead of selling you more. The app launches on iOS and Android in October 2026. Rate my routine works today at /rate — no sign-in.