RUO supplier
Closed. The official homepage states that Peptide Sciences voluntarily shut down operations and discontinued research-product sales.
Deep research review
Peptide Sciences is no longer an active supplier according to its official site. Its profile should remain available only as a dated archival record, and it should not appear in active offers, rankings, or supplier comparisons.
What this review did not check: Historical product and documentation claims were not re-audited as current supplier evidence.
Official site closed
The official site states that Peptide Sciences voluntarily shut down operations and discontinued the sale of research products.
The notice does not give a detailed reason or exact legal closure date.
Findings
Official Closure
The official notice says operations ended and research-product sales were discontinued.
Limit: The page retains stale account and purchase interface elements below the closure notice.
Impersonation Warning
The official notice says third parties claiming affiliation, succession, or authorization to sell Peptide Sciences products are unauthorized.
Limit: The statement does not identify specific third parties.
Closed Catalog
Historical product routes redirect to the shutdown page rather than an active catalog.
Limit: Historical pages may remain in external caches or archives.
Historical Only
Historical supplier documentation should not be rendered as current operating evidence.
Limit: This review did not reconstruct the full historical document archive.
Search limits
Regulatory Reference Not Action
An FDA KPV briefing document cites a historical Peptide Sciences product page as a market reference.
Limit: The citation is not an enforcement action, approval, or endorsement.
Limited regulatory search
No exact-name FDA warning letter or recall surfaced in the limited search.
Limit: Search absence does not explain the shutdown and is not regulatory clearance.
Mixed Historical Anecdotes
Reddit contains mixed historical anecdotes about price, perceived effects, testing, and shipping, plus speculation about the closure.
Limit: These are uncontrolled personal reports and community interpretation.
Open company questions
Observable documentation fields
This measures fields in normalized public records. It does not score product quality, sterility, legal compliance, or suitability.
This profile is retained as a historical company record. The official closure notice does not provide an exact legal closure date or a detailed reason.
Profile ownership: unclaimed. Company representatives will be able to propose identity and catalog updates without changing editorial or regulatory records.