Best lot-level third-party testing
Lot-level testing means the certificate refers to the specific production lot you receive, not a representative sample from some earlier batch.
Why Licensed Peptides leads this list
Licensed Peptides scores 81/100 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 lot-level third-party testing?
Licensed Peptides with 81/100, followed by Core Peptides (78).
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.