Compare prices, purity, and shipping from 60+ verified suppliers.
We collect and aggregate publicly available test results from independent third-party laboratories such as Janoshik Analytik. Suppliers voluntarily submit their products for testing. We display these results transparently so you can compare quality across suppliers — we do not purchase or test products ourselves.
We collect public test results from Janoshik, Finnrick and others — we do not test ourselves.
We display current prices, shipping costs and $/mg values across all suppliers.
You see all quality data at a glance and make your own informed decision.
CheckPept offers two complementary approaches — free information and active quality assurance.
Free
A public information platform. We aggregate prices, shipping costs, and publicly available lab data from Janoshik & Finnrick — so you know where to find the best value.
Membership
For those who want certainty: In the Club we order together, receive centrally, and send every batch to Janoschek Analytik — testing for purity, endotoxins, and heavy metals. You receive your peptide with a certificate.
Our highest-rated vendors based on quality, transparency, and customer experience.
In the CheckPept-Club we pool orders, buy direct from manufacturers, and have every batch tested at Janoschek Analytik — for purity, endotoxins, and heavy metals. Up to 30% cheaper than market prices — with certificate.
30%
Max. Savings
100%
Janoshik Tested
30% discount on market prices — with Janoshik testing included
50mg
Aurapeptide
5mg
AmbioPharm
5mg
Biotech Peptides
5mg
Cernum Biosciences
5mg
Biotech Peptides
50mg
Swiss Peptide
We display public test results from Janoshik & Finnrick — no in-house testing.
Prices are updated daily automatically — including shipping costs.
Our rating methodology is fully publicly available.