Cowboy Chems is a US-based supplier of research-grade peptides, third-party tested and independently HPLC verified to 99%+ purity, with a batch-stamped Certificate of Analysis on every order. For researchers who sourced from Amino Asylum before it went dark in June 2025, that last sentence is the whole pitch: the documentation exists, it is tied to your batch, and you do not have to take anyone's word for anything.
Why is Amino Asylum gone?
Amino Asylum's site went offline overnight in June 2025; per reports, payment processing stopped and open orders were frozen. Muscle & Brawn's report on the events describes widely circulated but unconfirmed community accounts of a federal enforcement action at the company's warehouse, and describes the event as possibly the first physical raid on a major peptide vendor. We located no agency statement confirming the action as of August 24, 2026. Today, aminoasylum.shop serves a coupons-themed "Coming Soon" page rather than a storefront, with no public statement about a return.
The full account, with what is reported versus what is confirmed clearly separated, is in our article on what happened to Amino Asylum. Amino Axiom also maintains a sourced editorial deep-dive at aminoaxiom.com/vendor-status/amino-asylum. Disclosure: Amino Axiom is part of the same brand network as Cowboy Chems, and this article recommends our own store.
What should researchers check before switching suppliers?
A no-notice vendor exit is the argument for qualifying suppliers on documentation rather than price or reputation. (For completeness: The Peptide Catalog's roundup alleges compliance problems in Amino Asylum's run-up — ignored warning letters, consumption-style marketing — but we located no matching FDA warning letter or case record, so we treat those as unverified allegations, not a checklist.) The qualification list stands on its own:
Batch-specific COA on every order. Not on request, not for select products. Every order, tied to the batch stamp on the vial. Our guide to what a COA can and can't tell you keeps the document honest.
A purity number you can trace. 99%+ means something when there is a chromatogram behind it and nothing when there isn't. 98% vs 99% purity covers why the last point matters more than it looks.
Research-lane marketing. A vendor whose copy drifts outside research-use framing is telling you something about how it operates. Take the hint before regulators do.
Your own records. Keep COAs and batch numbers in your own files. When Amino Asylum's site went down, we located no public path for customers to retrieve their records afterward.
How does Cowboy Chems document its catalog?
Every compound we stock has a batch number, a COA, and an HPLC trace to back it up. Purity is verified at 99%+ per batch by independent third-party testing, and the actual number is on the certificate. Operations are US-based, and insulated, temperature-conscious shipping practice is covered in our cold-chain shipping article. Everything in the catalog is supplied strictly for laboratory research use.
No vague claims. No "trust us." Documentation you can file and stand behind.
What does Cowboy Chems carry?
The catalog covers the healing, metabolic, GH secretagogue, cognitive, and longevity research categories — including staples like BPC-157 — with specifications and documentation on every product page. Browse the full catalog for current availability and pricing.
How do I get started?
Head to the catalog, open a product page, check the documentation, and order with a research-use acknowledgment at checkout. Questions about a compound or bulk purchasing go through the site contact form and reach a person, not a queue.
For research use only. Not for human use. All compounds sold by Cowboy Chems are intended exclusively as laboratory research materials. Cowboy Chems makes no claims regarding the therapeutic, diagnostic, or medicinal use of any product. Purchasers must confirm they are 21 years of age or older and that all materials will be used in accordance with applicable research regulations.
Reference
Common questions
Cowboy Chems is a US-based supplier of research-grade peptides, third-party tested and independently HPLC verified to 99%+ purity, with a batch-stamped Certificate of Analysis on every order.
Amino Asylum's site went offline overnight in June 2025 amid widely reported but unconfirmed community accounts of a federal enforcement action at its warehouse. The domain now shows a coupons-themed "Coming Soon" page, and there is no public statement about a return as of August 2026.
A batch-specific COA on every order, an HPLC purity figure you can trace to a chromatogram, third-party testing by a named lab, and marketing that stays inside the research-use lane.
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