Suppliers that list bulk quantities or run a wholesale program for laboratories and resellers.
A long-running supplier that takes cards, ships internationally and knows how to publish a proper lot-numbered certificate, then stopped doing so in 2023.
Same score as everywhere else, filtered by one fact.
A long-running supplier that takes cards, ships internationally and knows how to publish a proper lot-numbered certificate, then stopped doing so in 2023.
The best-linked certificates in this group, straight from the product page to Janoshik's own verification record, paired with an independent record in which half of Finnrick's tests failed and a company that publishes no address, phone or owner.
A capsule-heavy research-chemical store with one of the larger public lab-results pages in this group and a purity refund you could actually claim, carrying an FDA warning letter from December 2024 and a returns policy that excludes peptides and adds fees.
Open certificates from two named laboratories and free US shipping with no minimum, on a mixed SARMs-and-peptides catalog that carries a 2021 FDA warning letter, files its certificates by date rather than lot, and has no returns policy at all.
Blue Sky Peptide is a long-running budget supplier with a free certificate library and one of the lowest free-shipping bars we have seen.
A UK SARMs-first shop with budget peptide prices, a real street address and phone, card payment and a 14-day money-back window.
Geo Peptides has one of the lowest BPC-157 prices we recorded and almost nothing behind it: certificates without a laboratory, lot or date, a text-only phone number for contact, and a Trustpilot record dominated by orders that did not arrive.
A budget-tier Chinese direct supplier with crypto-only checkout, a Janoshik verification route and a long file of Finnrick-documented warnings, from lookalike domains to a forum ban for doxxing a customer.
Extreme Peptides has traded since 2010, answers a phone, takes card, Bitcoin and ACH and ships free from $99.
The main Atomik Labz site refused to load for us, and the sister storefront that did load shows prices, a crypto discount and not a single certificate, laboratory name or address.
Peptide Pros, at 6.5 out of 10, with Verified Peptides next at 6.0. Editorial scores from a published formula, not user reviews.
We filter the full scored list by one fact that appears on each supplier’s own pages. Nothing is reweighted for the category; the score is the same one you see everywhere else here.
Every supplier on this list sells materials labeled for laboratory research use only. We score suppliers, their documents and their policies, and we do not describe or endorse any other use.
