49 suppliers scored7 FDA warning letters tracked8 closures on recordUpdated October 2026 · How scoring works
Peptide Ranking
October 2026 shortlist · 14 qualify

Best suppliers that ship internationally

Suppliers that state they ship outside their home country. Customs rules vary; the supplier page is the authority.

#SupplierScoreThird-party testingPublic COAsLot-levelReference priceBased
6Koi Peptideskoipeptides.com72/100YesYesYes—USReviewVisit site
8Evolve Peptidesevolvepeptides.com71/100YesYesYes$39.90USReviewVisit site
9BioLongevity Labsbiolongevitylabs.com70/100YesYesYes—USReviewVisit site
15Peptide Prospeptidepros.net66/100LimitedYesYes$47.25USReviewVisit site
19Nexaphnexaph.com62/100YesYesNot verified——ReviewVisit site
23Swiss Chemsswisschems.is59/100YesYesYes—USReviewVisit site
26QSCqscpeptide.com58/100LimitedNot verifiedNot verified—CNReviewVisit site
27Receptor Chemreceptorchem.co.uk58/100LimitedYesNot verified—UKReviewVisit site
31UK Peptidesuk-peptides.com52/100NoYesNot verified—UKReviewVisit site
32Direct Peptidesdirect-peptides.com47/100LimitedYesNo——ReviewVisit site
35PureRawzpurerawz.co42/100LimitedNot verifiedNot verified—USReviewVisit site
38Amino Asylumaminoasylumofficial.com38/100LimitedNot verifiedYes—USReviewVisit site
42Trident Peptide UKtridentpeptide.com33/100LimitedNot verifiedNot verified—UKReviewVisit site
47Skye Peptidesskyepeptides.com25/100Not verifiedNoNot verified—USReviewVisit site

Why Koi Peptides leads this list

Koi Peptides scores 72/100 overall: testing 82, transparency 86, track record 40. Koi Research Labs LLC (brand Koi Peptides), stated founded 2022 and 'synthesized and lyophilized in the United States' at an unnamed partner facility; ranked #1 in LearnMuscles' 2026 list. Site claims in-house HPLC/LC-MS plus blind retest at an unnamed ISO/IEC 17025 lab with HPLC, LC-MS, ICP-MS metals, LAL endotoxin and (About page) sterility; the public COA PDF for BPC-157 is from Freedom Diagnostics and shows only HPLC-UV purity, LC-MS identity and net content, so endotoxin/sterility are marked unknown. The BPC-157 product URL now 301-redirects to kylopeptides.com (Kylo Labs LLC, same Sheridan WY registered address, Trustpilot 4.3 from 13 reviews) which names Janoshik, Freedom Diagnostics and Vanguard Laboratory; the relationship is undisclosed on both sites. No 5mg BPC-157 list price verified on koipeptides.com (homepage shows $0.00; Kylo shows 5mg at $19.98 member price only). No FDA warning letter found (search hits are for the unrelated Koi CBD, LLC).

Read the Koi Peptides review

Frequently asked questions

Which supplier leads for suppliers that ship internationally?

Koi Peptides with 72/100, followed by Evolve Peptides (71).

How is this list built?

It is the overall ranking filtered by one verifiable attribute from each supplier fact sheet. No separate weighting is applied.

Are these products for personal use?

No. Every supplier listed sells materials labeled for laboratory research use only, and this site does not describe or endorse any other use.