glutathione comes from for the skin The Glutathione System: A Journey

Elevated levels of liver enzymes gamma-glutamyl transpeptidase (GGT), alanine aminotransferase (ALT) and aspartate aminotransferase (AST) can indicate liver damage, as can elevated serum bilirubin (a breakdown product of the red blood cell component hemoglobin normally cleared by a healthy liver)

In addition to oxidative stress, eryptosis can be induced by energetic, mechanical, and osmotic stresses

It is also investigated in oxidative stress and cellular defense pathways, where it helps model how peptide signaling interacts with antioxidant systems and metabolic regulation

First impressions This serum has no fragrance which for some would be a big plus, but I personally love my skincare to have a fresh, clean smell