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Have a question, found an error, or want to suggest a peptide we haven't covered? We read every message.
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Prefer email? Write to us at hello@pepformula.com. We aim to respond within a few business days. For calculation errors, use the "Report an error" subject so we can prioritize.
Vendors & Partnerships
If you represent a peptide vendor and are interested in featuring our calculator on your site, please select the Partnership / vendor option in the subject dropdown above. We are open to calculator embedding arrangements for verified vendors.