perricone md essential fx acyl-glutathione intensive overnight moisturizer PerriconeMD Glutathione by Perricone MD is a highly effective facial serum specifically designed to intensely nourish the skin overnight Perricone MD Essential Fx Acyl-Glutathione

Keep GHK-Cu Conditioner on the mid-lengths and ends where softness and detangling matter, and keep the scalp for the shampoo and the leave-on serum

Glutathione is an antioxidant that occurs naturally in the skin, where it helps defend against visible signs of environmental damage

For most people in their 40s, 50s, and beyond, that translates to visibly healthier, more resilient skin and measurably improved hair densityoutcomes that accumulate and compound over time

It plays a role in cysteine storage

It hits gene expression controls, including potential histone protein binding and regulation of specific DNA regions