California Gold Nutrition L-CysteineFeaturing Ajinomoto/AjiPure® L-CysteinePlays a Role in the Production of Healthy Skin, Hair and Nails*Supports the Production of Important Antioxidants such as Glutathione*Formulated to Contain: No Gluten, No GMOs, No SoyProduced in a 3rd Party Audited cGMP Registered (Certified) Facility100% Gold GuaranteeL-Cysteine is a non-essential sulfur amino acid, which plays a critical role in methionine, taurine and glutathione metabolism. L-Cysteine works in the liver to protect the body from harmful substances and may help to prevent oxidation of tissues.* L-Cysteine also helps to synthesize keratin, a protein found in skin, hair, and nails.*California Gold Nutrition L-Cysteine is sourced exclusively from Ajinomoto and features AjiPure® L-Cysteine that is produced via their patented Ferment-A-Pure Technology. These are Pharmaceutical Grade, contain no animal products (hair or feathers) and are suitable for vegetarians and vegans. iTested VerifiediHerb Blog: How to Improve Liver Health Naturally