amino acids that make up glutathione Glutathione, a tripeptide found in virtually all cells, functions as a reducing agent. The structure of is: What glutathione? Glutathione - Wikipedia

Your main struggle is with pigmentation , and you've tried many topical bleaches/serums with limited success

Hepatoprotective Effect of BPC 157, a 15-Amino Acid Peptide, on Liver Lesions Induced by Either Restraint Stress or Bile Duct and Hepatic Artery Ligation or CCl4 Administration

p16 is crucial for maintaining senescence by regulating Rb protein phosphorylation to inhibit cell division 9

Our analytical verification programme includes assay determination, purity confirmation, FTIR spectrum identification, retention time verification, molecular ion mass identification, endotoxin screening, microbiological analysis and comprehensive heavy metal testing

Your next step If you want to try GHK-Cu at home, start with GHK-Cu and keep the rest of your routine calm for two weeks so your skin can tell you how it reacts