Partners

Trusted partners & supplies

The vendors and resources we list, and the standards they have to meet first.

Disclosure: We may earn a commission when you buy through links on this page, at no extra cost to you. Partners are listed only after meeting the criteria below, and they have no input on our research content.

Research supply partners

Testing details below are as reported by each vendor. Ask for the certificate of analysis that matches your lot.

Perfect Peptides

perfectpeptides.com
Featured partner
  • Batch testing by Krause Analytical
  • QR-linked certificate of analysis with every order
  • U.S.-based supplier
Visit perfectpeptides.com

Bench Grade Peptides

benchgradepeptides.com
  • Public certificate library, published per lot
  • QR-linked COAs on every vial
  • Purity guarantee backed by independent retesting
Visit benchgradepeptides.com

American Peptides

americanpeptides.us
  • Lot-matched certificates of analysis
  • HPLC and mass spec purity testing
  • Ships from Louisiana
Visit americanpeptides.us

99 Purity Peptides

99puritypeptides.com
  • Third-party HPLC and mass spec testing
  • Certificate of analysis on request
Visit 99puritypeptides.com

BioInfinity

bioinfinity.co
  • Third-party tested
  • Certificate of analysis included
Visit bioinfinity.co

Spartan Peptides

spartanpeptides.com
  • Published HPLC purity results
  • Certificates of analysis online
Visit spartanpeptides.com

Clinician & supply resources

Fullscript

Practitioner dispensary

Practitioner-grade supplements dispensed through licensed clinicians. A good fit for readers who want professional guidance.

  • Products recommended by your practitioner
  • Verified, professional-grade brands
Learn about Fullscript

Lab supply storefront

Handling, storage and safety supplies, available on Amazon.

Shop the storefront →

As an Amazon Associate, Peptide Explainer earns from qualifying purchases.

How we vet vendors

  • Independent third-party purity testing, with certificates of analysis published for each batch
  • Transparent company information and a verifiable business address
  • No disease-treatment claims in their own marketing
  • A consistent track record in independent reviews