Certificates of analysis

Every tested lot, independently verified.

Purity you can check — not a claim you're asked to trust. Each product below ships with a third-party certificate of analysis from Janoshik: HPLC identity and assayed purity for that specific batch, with a unique key you can confirm directly atjanoshik.com/verify. We report HPLC identity and purity only; we do not claim heavy-metal, microbial, or endotoxin testing. New to reading one? See How to read a COA.

CompoundLabBatchAnalysedPurity (HPLC)Verify keyReport
RetatrutideResearch peptideJanoshikwhite cap2025-11-0799.499%SKYPD9CJHB21PDF ↗
GHK-CuCopper peptideJanoshikBlue Cap2025-11-2599.794%7JSHIUYUC714PDF ↗
TB-500Research peptideJanoshikWhite2025-12-0899.402%PDXV8UJEL1G4PDF ↗
BPC-157Research peptideJanoshikBlue Transparent Cap / Silver Crimp2025-12-1599.497%RMAIPH836PXJPDF ↗
NAD+CoenzymeJanoshikGreen2025-12-05Published where testedVC63IEZ7H6YFPDF ↗
SemaxResearch peptideJanoshikClear Cap2026-05-2899.184%LI1FR3Y5KSVBPDF ↗
EpitalonResearch peptideJanoshikGreen2026-01-1999.154%4371ZNKCLG9HPDF ↗
MOTS-cResearch peptideJanoshikwhite cap2026-03-2599.274%X9QFDRJ85UYGPDF ↗
Ipamorelin 10 mgResearch peptideJanoshikred cap2025-11-0799.730%T9U1LKB242MKPDF ↗

Identifiers we haven't independently confirmed are marked “[VERIFY]” on the product page rather than guessed. A lot that misses spec is rejected, not relabelled. Seehow we verify for the full standard. For laboratory research use only — not for human or animal consumption.