49 suppliers scored7 FDA warning letters tracked8 closures on recordUpdated October 2026 · How scoring works
Peptide Ranking
October 2026 shortlist · 27 qualify

Best suppliers that take card payments

Card acceptance is a practical signal: a merchant account requires underwriting and gives the buyer chargeback rights.

#SupplierScoreThird-party testingPublic COAsLot-levelReference priceBased
1Licensed Peptideslicensedpeptides.com84/100YesYesYes—USReviewVisit site
2Ascension Peptidesascensionpeptides.com77/100YesYesYes—USReviewVisit site
4Core Peptidescorepeptides.com74/100YesYesYes$52USReviewVisit site
5Pure Peptide Labspurepeptidelabs.shop74/100YesYesYes—USReviewVisit site
6BioLongevity Labsbiolongevitylabs.com72/100YesYesYes—USReviewVisit site
7Koi Peptideskoipeptides.com72/100YesYesYes—USReviewVisit site
9Alpha Peptidesalpha-peptides.com71/100YesYesYes—USReviewVisit site
11Sports Technology Labssportstechnologylabs.com70/100YesYesNot verified$54.99USReviewVisit site
14Simple Peptidesimplepeptide.com65/100YesNot verifiedYes—USReviewVisit site
16Nexaphnexaph.com63/100YesYesNot verified——ReviewVisit site
17Peptide Prospeptidepros.net63/100LimitedYesYes$47.25USReviewVisit site
20Peptide Warehousepeptide-warehouse.com61/100YesYesYes$52.99USReviewVisit site
22Swiss Chemsswisschems.is59/100YesYesYes—USReviewVisit site
23Umbrella Labsumbrellalabs.is59/100YesYesNot verified$48.99USReviewVisit site
24Loti Labslotilabs.com58/100YesYesYes$49.99USReviewVisit site
28Receptor Chemreceptorchem.co.uk50/100LimitedYesNot verified—UKReviewVisit site
29UK Peptidesuk-peptides.com50/100NoYesNot verified—UKReviewVisit site
30Geo Peptidesgeopeptides.com48/100LimitedYesNot verified$33.99USReviewVisit site
31Extreme Peptidesextremepeptides.com44/100Not verifiedYesNot verified$48.99USReviewVisit site
32American Research Pensamericanresearchpens.com43/100LimitedNot verifiedNot verified—USReviewVisit site
33Direct Peptidesdirect-peptides.com41/100LimitedYesNo——ReviewVisit site
34Atomik Labzatomiklabz.com39/100LimitedNoNot verified$40USReviewVisit site
35Enhanced Peptidesenhancedpeptides.com39/100Not verifiedNoNot verified—USReviewVisit site
36PureRawzpurerawz.co37/100LimitedNot verifiedNot verified—USReviewVisit site
41Research Peptidesresearchpeptides.com32/100NoYesNot verified——ReviewVisit site
44Polaris Peptidespolarispeptides.com26/100Not verifiedNoNot verified—USReviewVisit site
46USA Peptidesusapeptides.com24/100Not verifiedNoNot verified—USReviewVisit site

Why Licensed Peptides leads this list

Licensed Peptides scores 84/100 overall: testing 100, transparency 94, track record 27. Boca Raton, FL vendor selling vials, 30 ml atomized solutions, capsules and blends; several products carry coded names (LP3-R, LP2-T) recorded here as listed. Publishes a per-lot COA library (mostly JPG scans) naming Vanguard Laboratory and Ethos Analytics, plus separate endotoxin and residual-solvent libraries; sterility and mass-spec are claimed on marketing pages but the COA index lists HPLC only. No 5 mg BPC-157 price could be confirmed because the product page shows conflicting figures; shop grid lists 'From $53.99'. Trustpilot profile has been removed; Finnrick shows 4 tests (2 pass / 2 fail).

Read the Licensed Peptides review

Frequently asked questions

Which supplier leads for suppliers that take card payments?

Licensed Peptides with 84/100, followed by Ascension Peptides (77).

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.