Certificate of Analysis

Every order ships with the manufacturer's Janoshik Analytical Certificate of Analysis delivered straight to your inbox. No requests. No runaround. Automatic with every shipment.

Verified Source

Every product comes from a manufacturer whose peptides have been independently tested by Janoshik Analytical in Prague.

COA via Email

When your order ships, the manufacturer's Janoshik COA is automatically delivered to your inbox along with your tracking number.

Coming Soon

We're building our own independent third-party batch verification program — launching in the coming months.

Coming Soon

Independent Third-Party Testing Program

We're actively building our own batch verification program in partnership with independent laboratories to add an extra layer of quality assurance on top of manufacturer COAs. Sign up to be notified when it launches.

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Have a question about a specific COA? Message us on WhatsApp.