The peptide retains activity in human gastric juice for more than 24 hours, tolerates pH from 1 to 11, and resists multiple proteolytic enzymes, properties that derive from the high proline content (four of fifteen residues) and the absence of cleavage-prone motifs
Individuals who have dull skins, pigmentation, uneven tones, and indications of early aging might use glutathione treatments
FDA explains that a bulk drug substance used through the 503A pathway generally must meet one of the following conditions: Comply with an applicable United States Pharmacopeia or National Formulary monograph Be a component of a drug product with federal marketing authorization when no applicable monograph exists Appear on the 503A Bulks List when the first two pathways do not apply Additional requirements also apply, including documentation and sourcing requirements for the bulk drug substance
Reviewed by Dr
2019 Apr;37(2):175-181
Three peptides: BPC-157 (1,419.5 Da), GHK (340.4 Da), and TB-500 (thymosin beta-4-associated, 4,963 Da)