Disclaimer, privacy and affiliate disclosure

Educational disclaimer

PeptideCOACheck is an educational resource that helps people understand laboratory documents (Certificates of Analysis) for research peptides. It is not medical, legal or professional advice.

• Compounds mentioned on this site are discussed as research chemicals sold for laboratory research purposes only, not for human or veterinary use.
• We make no claims that any compound diagnoses, treats, cures, mitigates or prevents any disease, and we give no dosing information.
• The checker compares numbers you enter against reference values. A "consistent" result does not prove a document is genuine, or that a product is pure, correctly labeled or safe. An "issue" result does not prove a product is bad. Always verify reports with the issuing laboratory.
• Reference molecular weights are calculated from molecular formulas and cross-checked against public databases (PubChem, KEGG). We work to keep them accurate but make no warranty.

Privacy

The COA checker runs entirely in your web browser. Nothing you type is uploaded, stored, or sent to us or anyone else. There are no accounts, no file uploads, no analytics scripts, and no tracking cookies on this site. Your hosting provider may keep standard server access logs, such as IP address and pages requested, for security purposes.

Affiliate disclosure

Some links on this site are affiliate links, including links to Peplogix and the discount code XTIAN. If you buy through those links or use the code, the site owner may earn a commission at no additional cost to you. Affiliate links are labeled "Affiliate link" wherever they appear and are marked rel="sponsored". Affiliate relationships do not change how the checker evaluates any COA, including COAs from Peplogix.

Who runs this site, how it is funded and how content is written and corrected are explained on the About page and in our editorial policy. The exact rules the checker applies are listed in the methodology.