Third Party Testing & COA’s

At Johnson Peptides, quality isn’t a tagline—it’s our foundation.

Every batch of peptides we offer is independently tested by third-party laboratories to verify purity and consistency. Certificates of Analysis (COAs) are available upon request for all products, giving you confidence in your research materials.

 Why Third-Party Testing Matters

• Verified ≥99% purity with HPLC testing
• Confirms molecular integrity of each batch
• Transparency and accountability in every vial

???? Requesting COAs

Need a COA for your order? Just email support@johnsonpeptides.io with your order number and we’ll provide it promptly.

Your research deserves nothing less than verified, uncompromising quality.