Glutathione, or GSH, is a naturally occurring protein that protects every cell, tissue, and organ from toxic free radicals and disease
The absorbance at 450 nm was measured using a microplate reader (Synergy 2, BioTek, Winooski, VT, USA)
Under current federal regulations, dietary supplements do not require FDA approval before being sold
doi: 10.1111/j.1468-1293.2010.00906.x
For short-term experiments where the peptide will be reconstituted and used immediately, the standard acetate form is perfectly effective and has the most historical research data behind it
Under the International Nomenclature of Cosmetic Ingredients it is copper tripeptide-1, and it appears in serums, creams, and scalp products marketed for skin and hair appearance