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SNAP-8 protocol

SNAP-8 is a trade name for acetyl octapeptide-3, an 8-amino-acid peptide used in anti-wrinkle skin products. We found no study of it on its own in people. The human studies we found mixed it with other ingredients.

Cosmetic ingredient, not an approved medicineNo study of SNAP-8 alone in people found
ProtocolMixingResultsSide effectsHow it worksSources

The protocol at a glance

There is no medicine dose. Two small human studies tested skin patches that contained acetyl octapeptide-3 together with other ingredients.

ItemWhat is known
Human doseNot established
Studied inSkin patches and creams, always with other ingredients
Microneedle patch study (24 people)Patch applied overnight to one eye area; results checked over 28 days
Microneedle patch study, 12 weeksPatch on the eye corner and forearm; number of people not stated in the abstract

Shin JY et al. Ann Dermatol 2024 and Avcil M et al. J Cosmet Dermatol 2020. Both patches held several actives, so the results cannot be credited to SNAP-8 alone.

Community reports

We did not capture a community dose. It is described as a cosmetic skin ingredient.

What people say they do, collected from community discussions. Not tested in a trial; shown so you can compare it with the evidence above.

Mixing

No mixing table here: this one is used as a capsule, nasal spray or skin product, or has no human amount to calculate from. The general mixing calculator works for any vial.

What the trials found

No result exists for SNAP-8 alone. Results from patches that contained it among other ingredients:

0studies of SNAP-8 alone found
24people in a 28-day patch study; wrinkles and elasticity improved versus a plain patch
25.8%fewer fine lines in a 12-week patch study (whole patch, many ingredients)

Shin JY et al. Ann Dermatol 2024 (PMID 39082657); Avcil M et al. J Cosmet Dermatol 2020 (PMID 31134751). Supplier claims of 'up to 63%' wrinkle reduction have no study, size or timeframe attached, so we do not use them.

Side effects

  • Both patch studies reported no skin safety problems.
  • Safety of SNAP-8 on its own was not tested.

How it works

Cosmetic anti-wrinkle claim

It is marketed to relax the small facial muscles that form expression lines. We did not find a human study that shows this for SNAP-8 alone.

Sources

  • Shin JY et al. Ann Dermatol 2024, PMID 39082657
  • Avcil M et al. J Cosmet Dermatol 2020, PMID 31134751
  • ClinicalTrials.gov search for SNAP-8 / acetyl octapeptide: no studies