Vendor status logClosed
Peptide Sciences: status log
Closed (company notice, Mar 6 2026)
Domains: peptidesciences.com · Last checked 2026-10-19 · Reviewed by Amino Wire Editorial Team
Summary
On March 6, 2026, Peptide Sciences replaced its storefront at peptidesciences.com with a short notice saying it had decided to voluntarily shut down and stop selling its research products. The notice gave no reason. Later versions warn that anyone claiming to be a successor or to sell its products is unauthorized.
Dated facts
4 entries · newest first-
Press / research report
TitrateLab reported that searches of fda.gov and justice.gov found no warning letter, enforcement action or charge naming the company. A 2023 warning letter claimed by another site has not been located on fda.gov.
Source: TitrateLab
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Company statement
Notice revised again to assert the company retains its name, trademarks and goodwill. TitrateLab reports the same wording in captures through September 8, 2026.
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Company statement
By this date, per Internet Archive captures reviewed by TitrateLab, the notice added that any site claiming to be Peptide Sciences or a successor, or to sell its products, is “fraudulent, unauthorized” and unaffiliated.
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Shutdown notice
Storefront replaced by a notice: “After careful consideration, Peptide Sciences has made the decision to voluntarily shut down operations and discontinue the sale of our research products.” The Peptide List reported the notice appeared at about 2:00 PM Eastern.
Source: The Peptide List, March 6, 2026
Our site checks
automated · single location| Checked (UTC) | URL | HTTP | What loaded |
|---|---|---|---|
| 2026-10-19 06:17:59 | https://peptidesciences.com/ | 403 | Our automated request received a bot-challenge page (HTTP 403, “Just a moment...”), so we could not read the current notice directly. This is not evidence either way. |
A page loading does not show that a business is lawful, that orders are fulfilled, or anything about product quality. We did not place orders.
Notes and unknowns
- A separate site, peptidesciencesinc.com, publishes a statement saying the Peptide Sciences name continues there. The original notice says successors are unauthorized. We have not established who operates peptidesciencesinc.com and make no claim about it.
- No public record we found states why the company closed.