Certificates of Analysis (COAs)

At Wholesale Peptides, quality assurance and transparency are at the core of everything we do.

All peptides supplied are manufactured under controlled conditions and are accompanied by Certificates of Analysis (COAs) issued directly by the originating laboratory. These documents verify key parameters such as purity, identity, and batch consistency.

Factory COAs

Every product we supply includes a COA provided by the manufacturing facility. These certificates confirm:

• Verified compound identity
• Purity levels
• Batch and lot traceability
• Quality control standards

To protect our supply chain and manufacturing partners, we do not publicly share factory-issued COAs. These documents contain direct contact information for the originating laboratory, which we are required to keep confidential.

Independent Third-Party Testing

For products and formulations manufactured under our own brands — including prefilled pens and proprietary blends — we carry out independent third-party testing.

We work with Janoshik Analytical, a recognised analytical laboratory specialising in peptide verification and quality control.

Third-party testing is used to validate:

• Compound accuracy
• Purity and concentration
• Overall product integrity

This additional layer of verification ensures consistency and confidence across our branded product lines.

Example COAs

Below are sample Certificates of Analysis for Wholesale Peptides products. For more information send us a WhatsApp message.