Research peptide vendor
A US supplier with roughly 60 listings, most sold in four to twelve size options, a build-your-own-kit discount that reaches 30 percent on ten vials, and a complete set of published policies. A banner on every page says Apple Pay and Google Pay are currently unavailable.
quality claims we could confirm ourselves, rather than repeat from the vendor's marketing.
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Lyophilised research peptide vials and blends in multiple strengths, reconstitution solutions, bioregulators, methylene blue, and a small range of storage cases and apparel.
For laboratory research use only, not evaluated by the FDA, not intended for human or animal consumption. The disclaimer appears in the footer of every page and as a Research Use Only badge on each individual product card, which is more repetition than most vendors bother with. An age gate asks you to confirm you are 21 or over.
Graded by whether we could confirm it ourselves or are only repeating what the vendor states. A vendor's honesty about its own testing is a different question from what a published trial shows, so this is a separate scale from the evidence grades on our guides.
They are. Each card shows a starting price and the number of size options behind it, from four to twelve. GHK-Cu starts at $29.99, ZB-31 and NAD+ Buffered at $34.99, ZB TES at $42.99, ZLP RT at $44.99 and MOTS-c at $59.99.
Where the vendor states thisThere is one, and it lists 52 products in a searchable picker, including the diluents, the storage cases and the T-shirt. The structure is right: browse by product, then by batch.
Where the vendor states thisWe could not confirm this either way. Selecting a product requires passing an age-confirmation modal, which we did not click on the reader's behalf, so we reached the portal and its product list but not the documents behind it. The page structure is promising and the contents are unverified.
Where the vendor states thisThe Build Your Own Kit tool states 10 percent off three vials, 20 percent off five and 30 percent off ten, and the discount banner repeats on each product card. Mixing compounds into one kit is allowed, so the discount does not force you to buy ten of the same thing.
Where the vendor states thisTerms and conditions, privacy policy, cookie policy, return policy, shipping policy, a research use disclaimer and a legal contact, all linked from the footer of every page. After reviewing vendors with no policy pages at all, a complete set is worth recording.
Where the vendor states thisA banner on every page says Apple Pay and Google Pay are currently unavailable, with credit cards still accepted. No reason is given. Payment processing is the pressure point in this industry, and a wallet outage is the kind of thing that precedes larger changes, so it is worth watching rather than worrying about.
Where the vendor states thisThe banner states the outage and gives no reason or timescale. Payment processing is where pressure on this industry usually shows up first.
An age confirmation sits in front of the product picker. The portal exists and is well structured; what is actually in it is unverified.
ZLP RT, ZLP TZ, ZLP SEM, ZB TES, ZB CAG, ZB-31 and ZB-141 stand in for retatrutide, tirzepatide, semaglutide, tesamorelin, cagrilintide and SS-31. The house prefix makes the catalogue harder to price-compare than most.
Finnrick tracks Zenith Bioscience with one contact channel on file and holds zero tests across zero peptides, so it carries no rating there.
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It presents as a well-run shop: open starting prices, a complete policy suite, a research-use badge on every card and a certificates portal organised by product and batch. Two things we couldn't settle are what's actually in that portal, and why Apple Pay and Google Pay stopped working.
Every fact above traces to one of these pages, published by the vendor itself and checked on October 30, 2026. Vendor policy pages change without notice, so if something here looks out of date, it probably is.
Compare against
Open pricing, public COAs, strict research-only gate
