Acetyl octapeptide-3 SNAP-8 (acetyl octapeptide-3) cosmetic serum bottle (illustration)
Illustration — real product photo pending.

SNAP-8 serum for the look of expression lines

★★★★★ Cosmetic serum · appearance

A topical cosmetic serum with SNAP-8 (acetyl octapeptide-3) for the appearance of expression lines.

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All skincare
  • SNAP-8 (acetyl octapeptide-3) — cosmetic serum
  • Topical skincare — for the look of your skin
  • Ingredient-transparent formulation
  • Ships across the US
Written by bacwaterstar editorial teamCosmetic review: pendingLast reviewed: September 6, 2026
Price: available at checkoutSupplier-confirmed pricing is loaded from live inventory. This page does not display an unconfirmed price.
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What SNAP-8 (acetyl octapeptide-3) is

SNAP-8 is the cosmetic name for acetyl octapeptide-3, a peptide used topically in skincare aimed at the appearance of expression lines around the forehead and eyes.1 It’s an extension of the argireline (acetyl hexapeptide-8) family. As a cosmetic, it supports how skin looks; it isn’t a muscle relaxant or a medicine.

What a SNAP-8 serum is used for

In a routine, people use a SNAP-8 serum for the look of softer expression lines and a smoother-looking surface. These are appearance-based, cosmetic goals.

How to use it

Apply topically to clean skin as directed by the product, usually followed by a moisturizer. Patch-test if your skin is sensitive, and introduce it gradually.

Honest expectations

SNAP-8 is a cosmetic ingredient. Human evidence is limited and cosmetic-grade, so it supports the appearance of expression lines rather than changing muscle or treating anything. Set expectations accordingly and give it weeks of consistent use.

A cosmetic, not a drug. This is a topical cosmetic that supports the appearance of skin. It is not intended to diagnose, treat, cure, or prevent any disease, and cosmetic use is separate from any medical or injectable use of peptides.1

Frequently asked questions

What is SNAP-8 in skincare?

It’s the cosmetic name for acetyl octapeptide-3, a topical peptide used for the appearance of expression lines.1

Is SNAP-8 like Botox?

No. SNAP-8 is a topical cosmetic that supports the look of expression lines; it is not an injectable and is not a muscle drug.

How is it different from argireline?

SNAP-8 (acetyl octapeptide-3) is an extension of the argireline (acetyl hexapeptide-8) family; both are cosmetic expression-line peptides.

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Sources
  1. Acetyl octapeptide-3 (SNAP-8) as a cosmetic peptide ingredient. PubMed / U.S. National Library of Medicine. View research.