fda bpc 157 warning letter unapproved drug On August 15 2025, the U.S. Food & Administration (FDA) issued a to Platinum Biologics LLC for marketing umbilical‑cord‑derived products including exosome products (“NanoEx” & “Nano Xsomes”) without approval Vitamin B12 Type_Adenosylcobalamin Ounce:4 oz Alpharabi | Butaphosphan

fda bpc 157 warning letter unapproved drug On August 15 2025, the U.S. Food & Administration (FDA) issued a to Platinum Biologics LLC for marketing umbilical‑cord‑derived products including exosome products (“NanoEx” & “Nano Xsomes”) without approval Vitamin B12 Type_Adenosylcobalamin Ounce:4 oz Alpharabi | Butaphosphan

Alpharabi | Butaphosphan

Description Dihexa (PNB-0408) Product Use: THIS PRODUCT IS STRICTLY FOR SCIENTIFIC RESEARCH PURPOSES ONLY

Vitamin B12 Type_Adenosylcobalamin

Ounce:4 oz

Instead, it grew out of a large body of animal research suggesting the peptide may influence how connective and soft tissues recover after injury