Certificate of Analysis

Every peptide compound in our catalogue is supplied with a Certificate of Analysis (CoA) confirming its identity, purity, and composition prior to dispatch. CoAs are produced by independent analytical laboratories and are available directly from each product page.

We do not rely solely on manufacturer-issued documentation. Where independent third-party CoAs are available, these are preferred and displayed on the product listing.

What CoAs Confirm

Depending on the product and batch, a CoA may include:

Compound identity — confirmation that the supplied compound is what it is labelled as
Purity — typically confirmed via HPLC (High-Performance Liquid Chromatography), the industry-standard method for measuring peptide purity
Molecular weight — confirmed via mass spectrometry where applicable
Batch reference — allowing traceability back to the specific production batch

What HPLC Means

HPLC is a chromatographic technique that separates the components of a sample and measures their relative concentrations. For peptides, it provides an accurate measure of compound purity — expressed as a percentage of the total sample area. A result of ≥99% purity means that 99% or more of the detectable material is the target compound.

All single-compound products in our catalogue meet a minimum verified purity of ≥99% by HPLC unless otherwise stated on the product page.

A Note on Blended Products

Multi-compound blends — such as our BPC-157 / TB-500 blend and KLOW — are not supplied with an overall HPLC purity figure. Standard HPLC measures purity by separating compounds as they pass through a column at different rates. When multiple peptides are present in a single sample, compounds can co-elute — emerging at similar times — making it impossible to assign a single meaningful purity percentage to the blend as a whole.

This is standard practice across the peptide supply industry. Blended products are supplied with documentation confirming compound identity and composition, but without a combined HPLC purity figure. This reflects the analytical limitations of applying single-method HPLC to multi-compound formulations, not a limitation of the compounds themselves.

Research Use Only

Testing documentation is provided to support legitimate in-vitro laboratory research only. CoAs confirm analytical results at the time of testing and do not indicate suitability for human consumption, veterinary use, therapeutic use, diagnostic use, or any clinical application.

Questions

For CoA or batch documentation enquiries, contact us at [email protected]. Please include your order number and the product name in your message.