A GHK-Cu serum should list the peptide concentration (look for 1% or higher) and the rest of the ingredient list has to be short
Rather, it is a binary function of your microbiological testing and endotoxin testing
Foods Rich in Glutathione Precursors Since cysteine availability is the rate-limiting factor for glutathione synthesis, foods rich in cysteine and sulfur-containing amino acids are particularly important [2][9]: High-cysteine protein sources: Whey protein, eggs, chicken, turkey, pork, beef, fish Sulfur-rich vegetables (also activate Nrf2): Broccoli, Brussels sprouts, cauliflower, kale, cabbage, garlic, onions, shallots Glycine-rich foods (collagen sources): Bone broth, gelatin, skin-on chicken, pork rinds Glutamic acid sources: Tomatoes, mushrooms, parmesan cheese, soy sauce, fermented foods Practical Notes Cooking reduces glutathione: Raw fruits and vegetables contain more glutathione than cooked versions
"Wellness is not a destination, but a daily practice of supporting your body's natural wisdom." Taking the time to research and understand what you put into your body is a powerful act of self-care