Its high enough to deliver measurable benefits and flexible enough to be used safely once, twice, or even three times daily under medical supervision
Amazon hasnt officially published a detailed explanation, but based on recent changes, a few clear reasons stand out
Glutathione has many functions
Several Substances Get Placed on the Category 2 Bulks List The following substances were added to Category 2 because FDA claimed to identify significant safety risks: AOD 9604 BPC-157 Cathelicidin LL-37 CJC-1295 Dihexa Acetate Emideltide (DSIP) Epitalon GHK-Cu (for injectable routes of administration) Ibutamoren Mesylate Ipamorelin Acetate Kisspeptin-10 KPV Melanotan II Mechano Growth Factor, Pegylated (PEG-MGF) MOTs-C Selank Acetate (TP-7) Semax (heptapeptide) Thymosin Alpha-1 (Ta1) Thymosin Beta-4, Fragment (LKKTETQ) Compounding Industry Group Initial Response In early October, Scott Brunner from the Alliance for Pharmacy Compounding (APC) commented on the updates, particularly noting the addition of certain peptides to Category 2
For now, understand that bacteriostatic water for peptides is the standard for multi-dose vials because the benzyl alcohol preservative prevents bacterial growth between uses