who should not take glutathione supplements Safety: What to Avoid Glutathione Tablets For Skin Whitening:

Bakaeen F, Chu D, Correa AM, Rice D, McAllister R, Vaporciyan AA, Walsh G, Putnam JB, Swisher SG , Roth JA, Huh J, Smythe, WR

It strikes the optimal balance between concentration (keeping injection volumes reasonable) and accuracy (making dose measurement practical on standard syringes)

J Ethnopharmacol 314:116608 Xu H, Bao X, Kong H, Yang J, Li Y, Sun Z (2022a) Melatonin protects against cyclophosphamide-induced premature ovarian failure in rats

Caveat, applied to both : on the specific question of proven human fat-loss therapy, both compounds score identically: not demonstrated

Cordero-Erausquin, M., Coull, J

Glycyl-L-histidyl-L-lysine and its copper complexes decreases TNF--dependent IL-6 secretion in fibroblasts[1]