Home / Tests / SNAP-8

SNAP-8 testing in Canada

SNAP-8 is defined by an acetyl group at one end. Material where that step did not go to completion is 42 daltons light and is not the compound.

$249CAD

Results in about five business days from arrival

Order this test
  • Identity by LC–MS/MS
  • Purity, with the method stated
  • Net peptide content in mg
  • Chromatographic peak data
  • Certificate anyone can verify

An acetylated octapeptide

An eight-residue peptide, acetylated at the N-terminus, sold into cosmetic formulation under the INCI name acetyl octapeptide-3. It is an extension of the shorter argireline peptide.

Residues
8
Formula
C41H70N16O16S
Mol. weight
1075.2 Da
Also called
Acetyl octapeptide-3, acetyl glutamyl heptapeptide-3

The step that defines the compound

The acetyl group is the compound

Acetylation adds 42 daltons and is a separate synthesis step. Incomplete acetylation leaves unmodified peptide mixed into the product at 1033 rather than 1075.

Forty-two daltons in a thousand is four percent — detectable by mass, invisible to anything else.

Sold by concentration, not by mass

Cosmetic peptides are usually supplied as dilute solutions rather than lyophilised powder, often at one percent or less in a glycerin or water base. A quoted milligram figure may describe the solution rather than the peptide. Net peptide content resolves it.

Naming is inconsistent

Trade name, INCI name and sequence-based name are all in circulation for the same molecule, and the closely related argireline is often shelved beside it.

What your certificate reports

  1. Identity — confirmed from precursor-to-product-ion transitions on a triple quadrupole instrument, not inferred from retention time.
  2. Purity — measured at the quantifying transition, with the method named on the report.
  3. Net peptide content — quantified against an external calibration curve and reported as its own figure, in milligrams. Why this is a different number from purity.
  4. Peak data — the chromatographic results behind each figure, printed on the certificate rather than held back.

Common questions

How much sample do you need?

One unopened vial. Detailed posting instructions arrive with your order confirmation, immediately after you pay.

Does it need to be shipped cold?

No. Lyophilised peptides travel safely at room temperature, which is how nearly all samples reach us.

Who actually performs the analysis?

An independent Ontario laboratory. Every certificate we issue names the facility that ran it — we are a testing service, not a laboratory, and we would rather say so than let you find out from the report.

What if the result comes back bad?

You get the result. We do not soften findings, and we do not charge differently depending on what the analysis shows.

Can I verify the certificate is genuine?

Yes. Every certificate carries an identifier that anyone can check against our records, including the vendor you bought from.

Related reading

ExplainedPurity is not contentA vial can be 99% pure and hold a quarter less peptide than the label says.ExplainedHow labs know what is in a vialMass spectrometry without the jargon, and why weighing beats timing.Related testAOD-9604 testingAnother fragment where a small modification defines the compound.

Test your snap-8

$249 CAD · about five business days from arrival · never leaves Canada

Order this test