Glutathione Competitively inhibits melanin synthesis in the reaction of tyrosinase. It is the master antioxidant that fights skin-damaging free radicals. It also contributes to good liver function. As our manufacturers try to remain competitive they have made changes to the packaging. NEW LABEL-SAME FORMULA-----As our manufacturers try to remain competitive they have made changes to the packaging.As we try to sell through our stock and current inventory you may receive the old (amber) or new packaging (clear).But we want to assure you all of our products are 100% authentic.