MRP1 accumulation is often increased in drug-resistant cancer cells along with GST
But mostly I don't care too much to argue this as I don't think its worth the hair-splitting
About GHK-Cu Copper tripeptide-1 - studied for collagen synthesis, skin remodeling, hair-follicle regeneration, and antioxidant gene modulation
Furthermore, emerging research suggests GLP-1 receptors exist in the brain, heart, and immune cells
The most important step is to track how you feel and, importantly, to re-test your key markers after 3-4 months of consistent supplementation
Pro Tip: If you also experience excess oil, enlarged pores, or acne, consider pairing your glutathione routine with a Niacinamide serum