// quality
what a certificate
has to prove.
Independent testing of consumer-facing peptide products has repeatedly found measured purity far below label claims, and in some samples elemental contamination above limits that would apply to an injectable product. A label proves nothing. This is what we publish instead.
// 01 identity
mass spectrometry, every lot
Confirms the vial holds the molecule on the label, at the right mass. The certificate names the method and prints the observed figure against the theoretical one — not a pass/fail tick.
// 02 purity
RP-HPLC to ≥ 99%
The chromatogram is published, not summarised. A percentage without a trace behind it is an assertion.
// 03 content
assay reported separately
Purity and peptide content answer different questions. A vial can be 99% pure and still be substantially counter-ion and residual solvent by mass, so both numbers appear.
// 04 contamination
the panel most skip
Bioburden, endotoxin, heavy metals and residual solvents. This is the section absent from most certificates in circulation, and the reason we publish ours in full.
// what testing cannot establish
the honest limits.
Being straight about this matters more than the claims above.
- A certificate describes the sample tested, not necessarily every vial in the lot — which is why multiple vials per batch are sampled rather than one.
- Sterility of the specific vial in your hand cannot be proven by any certificate.
- Conditions during shipping and after delivery are outside anyone's control once it leaves.
- No amount of analytical testing makes a research reagent safe or appropriate for use in a person. That is a different question, answered by clinical trials that mostly do not exist for these compounds.