A dated record of peptide vendor closures 2025-2026: Peptide Sciences, Amino Asylum, Paradigm Peptides, and two FDA warning-letter batches, with links.
Peptide Sciences shut down March 6, 2026, and its notice calls further brand sales fraudulent. Dated facts, clone-site red flags, successor checklist.
Peptide Sciences closed March 6, 2026. A verification-first framework for choosing an alternative: third-party HPLC and MS testing, COAs, cited evidence.
Paradigm Peptides’ owner received 70 months in July 2026; products labeled as SARMs contained testosterone. Why MS identity testing is the successor test.
Seven FDA warning letters dated March 31, 2026, posted April 7, named research-peptide sellers. Full table of entities, letter numbers, and triggers.
FDA agents raided Amino Asylum in June 2025: site dark overnight, payments cut, orders frozen. The dated timeline, plus contingency habits for researchers.
Amino Asylum went dark after a June 2025 FDA raid. What a raid means versus a warning letter, and the verification criteria a successor supplier must meet.
Plain-language explanation of FDA regulations for research peptides, ‘for research only’ labeling rules, 2025–2026 enforcement actions, and state-level variation.
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