niacinamide and glutathione Minako Plus Body Lotion - 500ml and leaves the skin feeling fresh and revitalized APLB Glutathione Niacinamide Ampoule Serum

Interestingly, GHK-Cu did not show any signs of irritation

Instead of generic glutathione claims, you can reference peer-reviewed research showing superior cellular uptake and retention

Examination of the GCL from these different organisms suggests that the interplay between the redox-sensitive thiol-switch and dimerization of the plant enzymes occurred later in evolution and may be related to compartmentalization of glutathione synthesis in the chloroplast (Gromes et al., 2008)

Am J Respir Cell Mol Biol 29(1):8897

The peptides help to reinforce your hair's structure and add strength, ceramides "reduce breakage" and green tea extracts "provide antioxidant protection," she says