glutathione precursors in the Brain Role of Glutathione in Cancer:

The APLB Glutathione Niacinamide Cleansing Balm melts away makeup and sebum while brightening, plumping and moisturising with 79.7% Lipo Gluta Niac Oil

That's the copper ion, and it's completely normal

Some prostate cell and rodent studies also indicate it may alter androgen metabolism by reducing DHT and increasing AKR1C2, a key protein involved in androgen metabolism

GHK-Cu (Glycine-Histidine-Lysine Copper Peptide) is a naturally occurring tripeptide-copper complex found in human plasma, saliva, and urine

Studies in bleomycin-induced pulmonary fibrosis show GHK administration at 2.6-260 g/mL/day reduces pathological TGF-1, preventing harmful fibrosis while maintaining beneficial tissue repair signals

doi:10.1542/peds.2006-0858