Three of the largest research peptide suppliers have closed. Two of them left behind an unusual parting message: anyone claiming to be their successor is fraudulent. If you are looking for a replacement supplier, that warning matters more than the closures themselves.
Every status below was verified directly on the company's own website or against a public court record on 19 September 2026. Where we could not verify something, we say so.
| Vendor | Status | How we verified it |
|---|---|---|
| Peptide Sciences | Closed — voluntary | Company's own website |
| Science.bio | Closed — permanent | Company's own website |
| Amino Asylum | Storefront gone — domain repurposed | Observed redirect, 6 Aug 2026 |
| Chemyo | Closed — permanent (8 Sep 2026) | Company's own website, read 19 Sep 2026 |
| Paradigm Peptides | Owner sentenced to 70 months (Aug 2026) | U.S. Department of Justice |
Both closed companies independently warn that impersonators are operating. Peptide Sciences states that any party claiming affiliation with it, or representing itself as a successor, is "unauthorized, fraudulent". Science.bio uses near-identical language and adds a direct instruction: "Do not interact with them."
Two unrelated companies issuing the same unprompted warning is not a coincidence. It means people searching for these brands are being routed to parties claiming a relationship that does not exist.
We saw an adjacent version of this directly: the Amino Asylum domain now redirects to a third-party coupon placeholder promoting a different vendor. Someone typing in the address they used to order from lands on a page selling them somebody else's product. That is not necessarily fraudulent — expired domains get bought and repurposed all the time — but the effect on a returning customer is the same, and it is worth knowing before you assume a familiar URL still belongs to who you think it does.
Peptide Sciences asks that impersonation be reported to service@peptidesciencesmail.com. Science.bio asks the same via the contact address on its notice.
The site now serves a shutdown notice in place of its storefront, and its canonical URL is a dedicated shutdown page. The notice states the company decided to voluntarily shut down operations and discontinue sale of its research products. It also states the company retains its trademarks and will continue to enforce them — which matters, because of the warning below.
The page title reads "Science Bio — Permanently Closed". The notice describes a decision to permanently close and discontinue the sale of research products, and carries a successor-fraud warning almost identical in substance to the Peptide Sciences one.
The aminoasylum.shop domain no longer serves a storefront. It redirects to a third-party "coming soon" coupon placeholder that promotes an unrelated peptide vendor. We found no company statement explaining the closure, and no FDA or DOJ record of an enforcement action against this business — despite that claim being widely repeated elsewhere. See the note on unverified claims below.
chemyo.com now serves an 'Official Notice' in place of its storefront: 'Chemyo permanently closed on September 8, 2026.' Orders placed before that date are stated to be unaffected and support remains available for past purchases. The notice carries the same successor-fraud warning as the two closures above — that no other website is authorised to represent Chemyo or collect information on its behalf, that Chemyo no longer accepts payment through any website, person or entity, and that readers should not send payment or personal information to anyone claiming to represent it. Chemyo was primarily a SARMs vendor with a peptide range; it was the eighth-largest uncovered vendor by search volume in our September 2026 keyword audit.
A separate matter entirely from the four closures above. The owner was sentenced to 70 months after pleading guilty to selling unapproved drugs and illegal importation. Court records include an admission that the company forged laboratory certificates; government testing found six testosterone-mimic products that all contained actual testosterone.
Full breakdown of the Paradigm Peptides case →Most pages covering this topic state closure dates and causes with confidence. We are not able to, and would rather say so:
One error worth correcting directly: the federal prosecution frequently attributed to Amino Asylum was against Paradigm Peptides — a different company. That is verifiable in the Department of Justice announcement. If a page tells you Amino Asylum's operators were prosecuted, it has confused two unrelated businesses, and it is fair to wonder what else it has confused.
If you are migrating from a closed vendor, you are doing the one thing impersonators are counting on: searching a brand name and trusting whatever comes back. Three checks, all free, before you order anywhere:
Our seven-point vendor checklist covers the full method.
Purgo Labs — 4.7 across 80 Trustpilot reviews. The relevant part for anyone burned by unverifiable claims: per-lot certificates from named laboratories, SteriGenix and Freedom Diagnostics, publishing measured net peptide content per batch with links to verify the result at the laboratory itself. Code HEALTH gives 20% off every order, not only the first.
Amino Club — 4.6 across 400 reviews, named ILS Labs testing, ungated batch-specific certificates. A considerably longer independent record than Purgo's. Code WELLNESS.
Affiliate disclosure: we earn a commission when readers buy through our Purgo Labs and Amino Club links. On a page about vendors who made claims nobody could check, that disclosure is the point — every figure above is either from a company's own published notice, a public court record, or a laboratory you can contact directly.
Closure statuses were confirmed by visiting each company's own domain on 19 September 2026 and reading the notice served there. The Paradigm Peptides material comes from the U.S. Department of Justice. We deliberately did not source any claim from peptide-industry blogs, because during research we found a significant factual error circulating among them. Where our verification came up short, the page says so rather than filling the gap.
Peptide Sciences closed. Its website now serves a shutdown notice in place of the storefront, stating that the company decided to voluntarily shut down operations and discontinue the sale of its research products. We verified this directly on the company's own domain. We cannot confirm a closure date — the notice is undated, and while several industry sites report early March 2026, none cites a primary source. We also cannot confirm the reason: the company described the decision as voluntary and did not give one.
Because the company excluded it. The shutdown notice is served with noindex, nofollow and noarchive directives, which instruct search engines not to list or cache it. That is the company's prerogative, but it has a side effect: when someone searches for what happened, the authoritative answer is unavailable and third-party speculation fills the gap. Several of the sites currently ranking for these queries contain demonstrable factual errors — see below.
No. Its page title reads "Science Bio — Permanently Closed", and the notice describes a decision to permanently close and discontinue the sale of research products. Verified directly on the company's domain in August 2026. As with Peptide Sciences, no date and no stated cause.
Both Peptide Sciences and Science.bio say no, in unusually direct terms. Peptide Sciences states that anyone claiming affiliation with it, representing themselves as a successor, or claiming to sell its products is unauthorised and fraudulent, and asks that such activity be reported to service@peptidesciencesmail.com. Science.bio states the same and adds that readers should not interact with them. Two unrelated companies issuing the same warning unprompted is a strong signal that impersonation is actively happening.
We could not verify that. The claim appears on numerous peptide-industry sites, but we found no corresponding record in Department of Justice or FDA enforcement publications. What we can confirm is that the storefront no longer operates and the domain now redirects to a third-party coupon placeholder promoting a different vendor. We are stating the limits of what we could establish rather than repeating a claim we cannot source. If you have a primary source, we will update this page.
No — and this is worth being precise about, because several industry sites have it wrong. The federal prosecution widely attributed to Amino Asylum was in fact against Paradigm Peptides, a different company. That is a matter of public record in the Department of Justice announcement. We flag it because it illustrates the wider problem: for these queries, the sites currently ranking are largely vendor-owned blogs, and at least one significant factual error is circulating between them.
Our first choice is Purgo Labs — 4.7 across 80 Trustpilot reviews, with per-lot certificates from named laboratories (SteriGenix and Freedom Diagnostics) publishing measured net peptide content and links to verify results at the lab directly. Code HEALTH gives 20% off every order, not just the first. Amino Club is our second choice, at 4.6 across 400 reviews with named ILS Labs testing and ungated batch certificates, code WELLNESS. Disclosure: we earn a commission on both. Given the subject of this page, that disclosure matters — so every claim we make about either is one you can check at a named laboratory rather than take from us.