Expression-line research
Studied in cosmetic research on the formation of expression lines.
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Acetyl octapeptide-3 · cosmetic research peptide
$45.00
CAD · taxes includedor $38.25 with Subscribe & save, and less per vial in bundles
Size: 10mg vial
Free, fast shipping anywhere in Canada
SNAP-8 (acetyl glutamyl heptapeptide-3, also called acetyl octapeptide-3) is a synthetic eight-amino-acid peptide. It's an extended version of the well-known hexapeptide argireline, with two extra amino acids added to the chain.
SNAP-8 is modelled on part of the SNAP-25 protein, which helps nerve cells release signalling molecules. That's why it's studied in cosmetic research on muscle-contraction signalling and expression lines. Each Monark vial contains 10mg of lyophilized peptide, tested by an independent laboratory.
Every batch is tested for purity by an independent laboratory, and the results are recorded on a certificate of analysis (COA).
Request the COA for this productSupplied as lyophilized (freeze-dried) powder in a sealed vial. Keep sealed vials cool, dry and away from light, and handle using standard laboratory practice. Our free Ultimate Peptide Guide covers storage and record-keeping in detail.
All Monark products are sold for laboratory research use only. Not for human or veterinary use. Not intended to diagnose, treat, cure or prevent any disease.

The peptide
SNAP-25 is a protein that helps nerve endings release the signals that make muscles contract. SNAP-8 is a short synthetic peptide modelled on one end of that protein.
Because it mimics part of SNAP-25, it's used in laboratory and cosmetic research on how that signalling process can be modulated.
In the literature
Studied in cosmetic research on the formation of expression lines.
Explored in laboratory models of the SNARE complex and signal release.
Used in research on peptide stability and topical formulations.
Summaries of published preclinical research, for reference only. Not a claim of any effect in humans or animals.
Why Monark
| Feature | Monark | Typical suppliers |
|---|---|---|
| Independent third-party testing on every batch | Varies | |
| Certificate of analysis available on request | Varies | |
| ≥99% purity standard | Varies | |
| Ships from Vancouver, BC | Varies | |
| Free shipping anywhere in Canada | Varies | |
| Real support from a Canadian team | Varies |
Argireline is a six-amino-acid peptide. SNAP-8 is the same chain extended to eight amino acids, which is why it's often studied alongside argireline.
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Yes. Every vial in your cart counts towards your bundle discount, whatever the product: any 2 vials save 10% and any 3 or more save 15% on your whole order.
Yes. Your mix & match discount applies first, then Subscribe & save takes another 15% off any subscribed items.
All Monark products are sold for laboratory research use only. Not for human or veterinary use. Not intended to diagnose, treat, cure or prevent any disease.
As lyophilized (freeze-dried) powder in a sealed vial. Keep sealed vials cool, dry and away from light. Our free Ultimate Peptide Guide covers storage and handling in detail.
Yes. Every batch is tested by an independent laboratory. Contact us any time to request the certificate of analysis (COA) for your batch.
Free, fast shipping anywhere in Canada. You'll get a tracking number by email as soon as your order ships.
Get The Ultimate Peptide Guide free when you join our research community.