increase glutathione levels with gamma-glutamylcysteine Frontiers GLUTATHIONE SYNTHESIS - PMC
Description
Glutathione is the key player in this Phase II detoxification pathway

By suppressing TGF-1 activity, topical GHK-Biotin may effectively prolong the growth phase of each follicle meaning each hair grows longer, denser, and for a greater period before shedding

Molecular Medicine, 11(1), 2668
Those concerned with aging skin often come for the detox benefits but stay for the complexion improvements

doi: 10.1210/en.2002-220490 87 CamillettiMAAbeledo-MaChadoAPerezPAFaraoniEYDe FinoFRulliSBet al