biological importance of glutathione Glutathione: Biosynthesis, Functions and Implications Glutathione Metabolism - an overview
Description
Globally, the timing of these changes in histone modifications matched changes observed in ATAC-seq signal

For best results, start with 1/4 dose and work up to the full dose over the course of 4 to 10 days
References Minogue SC, Sun DA (2005)

Typical injectable GHK-Cu dose ranges Standard starting dose: 1 mg per day subcutaneous Conservative / beginner dose: 0.5 mg per day Intensive / wound-healing dose: 23 mg per day Upper research range: 4 mg per day (rarely exceeded) Frequency: once daily, or split into morning + evening microdoses for steadier levels Route: subcutaneous (SC) injection - typically abdomen , thigh or flank
