Acetyl octapeptide-3
Acetyl octapeptide-3 is a cosmetic peptide included in products marketed for facial expression lines. Evidence for a delivery system or mixture must be distinguished from evidence for this ingredient alone.
At a glance
- Regulatory status
- Cosmetic ingredient; cosmetic marketing or an ingredient listing is not FDA drug approval. Claims and intended use determine regulatory treatment.
- Research context
- Acetyl octapeptide-3 is a cosmetic peptide included in products marketed for facial expression lines. Evidence for a delivery system or mixture must be distinguished from evidence for this ingredient alone.
What this is
- Acetyl octapeptide-3 is a cosmetic peptide included in products marketed for facial expression lines. Evidence for a delivery system or mixture must be distinguished from evidence for this ingredient alone.
What this isn't
- A recommendation to use, prepare, combine, or administer a product
- Evidence that a related molecule or a differently formulated product has the same effects
Acetyl octapeptide-3 is a cosmetic peptide included in products marketed for facial expression lines. Evidence for a delivery system or mixture must be distinguished from evidence for this ingredient alone.
Expression-line products propose effects on signaling associated with muscle movement. For acetyl octapeptide-3, the reviewed human paper primarily evaluates a finished delivery system; it does not demonstrate isolated neuromuscular target engagement in people. Its hyaluronic-acid microneedle patches also contained other peptides, adenosine and seaweed extracts. Study.
Evidence limits
How to read the evidence
The missing comparison is a well-controlled study that holds the vehicle and delivery system constant while changing only this ingredient. Until then, claims about the isolated peptide should remain narrower than claims about the whole tested product, and no injectable-treatment equivalence is established.
Sources appraised 2026-10-28. Educational information; not medical advice. Study findings apply to the populations, preparations and outcomes described.
External sources and citations
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