How to choose a research-peptide vendor after a closure: a 2025–2026 timeline, a checklist and the red flags

Why closures keep happening#

Research-peptide vendors sell unapproved compounds to a market that is largely anonymous, pays by methods with no recourse, and relies on the vendor’s own website as the only record of what it sold. Payment processors withdraw, banks close accounts, regulators send letters, and suppliers change terms. A vendor that depends on any one of those links can disappear in a week, and several have. The table below lists the closures we could date from the vendor’s own pages or from closure trackers; it is not a complete list of every store that went offline.

Six closures in sixteen months, from vendors of very different sizes; the dates are those stated by the vendor or by the cited tracker. None of them published a reason that customers could verify. Our separate page on the Soma Chems closure records exactly what that site displayed, because the details disappear quickly.

What happens in the 72 hours after a closure#

The pattern has repeated often enough to describe it in advance.

• Forum moderators remove "where do I buy now" posts. Most communities ban sourcing requests, so the useful threads vanish and the remaining ones fill with speculation.
• A dozen single-line vendor names appear. Posted with no evidence, often by accounts created that week. Some are honest recommendations; some are the vendor itself; there is no way to tell from the post.
• Affiliate "alternatives" pages appear within days. Pages titled "best alternatives to [closed vendor]" are usually built around affiliate codes, and the ranking follows the commission. The FTC’s endorsement guidance requires that kind of financial relationship to be disclosed clearly; many of these pages do not.^[5]
• Lookalike domains appear within weeks. Domains that borrow a closed vendor’s name, logo and product list, sometimes with a story about "the original team". One such domain was registered before its target had even closed.^[1]
• Trackers advise distrusting successor claims entirely. The closure trackers we cite take the position that no successor claim should be believed unless the closed vendor’s own domain or verified accounts confirm it.^[1][2] Peptide Sciences said the same thing in its own shutdown notice.^[3]

Ten checks you can actually perform#

Each check below is written as something you can verify, not something you have to take on trust. A vendor that passes most of them may still disappoint; a vendor that fails most of them has told you what to expect.

1. A named laboratory. The certificate of analysis names the laboratory, with an address or website you can find independently. How to verify: search for the laboratory yourself and confirm that it publicly offers peptide analysis. A certificate whose only name is the vendor’s own is a self-declaration.
2. A lot number that matches your vial. How to verify: when the product arrives, compare the lot printed on the vial with the lot on the certificate. One certificate shown for every size and every batch of a product is a copy, not a record.
3. A report you can look up at the laboratory. Some laboratories provide a report ID or QR code that resolves on their own site. How to verify: use it. Where the laboratory offers no lookup, the vendor should say so; silence on this point is itself an answer.
4. A recent test date. How to verify: the test date on the certificate should fall after the batch was made and before it went on sale, and should be months old at most, not years.
5. Identity and quantity reported as laboratory fields, not only purity. A purity percentage by HPLC says what fraction of the detected material is the main peak. Identity by mass spectrometry says whether that peak is the compound on the label. Quantity says how much is in the vial. How to verify: look for all three as separate fields on the certificate, each with a method named. Our certificate of analysis guide walks through each one.
6. Endotoxin where the laboratory offers it as a reporting field. Some laboratories report an endotoxin result alongside purity and identity. Its presence or absence is a laboratory reporting field and nothing more; it is not a statement about use.
7. A written refund or replacement policy that does not depend on how you paid. How to verify: read the policy page before ordering, and look for a lost-or-damaged clause. "All sales are final" tells you the vendor’s position on a shipment that never arrives.
8. A way to reach a person. How to verify: send a question before you order and time the reply. A stated response window and a named support address are the minimum; a phone or SMS line is better.
9. A legal entity, city and address on the website. How to verify: look for them in the footer, the terms page and the privacy policy. If you cannot find out who you are paying, you cannot pursue them.
10. Payment with recourse where possible. Card payments can be disputed through the card network. Zelle’s own user agreement states that it offers no protection program for authorized payments, and the same is broadly true of Venmo transfers to businesses, gift cards and cryptocurrency.^[6] How to verify: check which methods the vendor offers to a first-time customer.

Red flags#

Any one of these is a reason to pause. Two or more together describe most of the vendors that customers later complained about.

• Successor claims. "The original team", "we acquired their inventory", "formerly known as", or a closed vendor’s coupon codes accepted at a new site. Unverified until the closed vendor’s own domain confirms it, which in the cases above never happened.
• No-recourse payment only for new customers. A vendor that offers card payment to repeat buyers but only Zelle, Venmo or crypto to first orders has priced its own risk and passed yours back to you.
• One certificate reused across batches. The same report, with the same lot number and date, attached to every size and every restock of a product.
• No legal entity. A site with no company name, no address and no jurisdiction in its terms.
• "Legit links" gated behind a DM. Vendors or promoters who will only share a link privately are avoiding the record that a public page creates.
• Undisclosed affiliate codes. "Alternatives" lists and review posts that carry a discount code without stating that the author is paid when you use it. The FTC’s endorsement guides are explicit that the relationship must be disclosed.^[5]

What this guide does not do#

It does not rank vendors, carry affiliate links or recommend anyone. Competitors are named only in dated, factual statements about closures that their own sites or the cited trackers reported. If you believe a date above is wrong, email support@renuviaus.com with the source and we will correct it.