NOW Foods, L-Cysteine, 90 Veg Capsules

Structural Support Healthy Skin, Hair and Nails With Vitamin C A Dietary Supplement Vegetarian/Vegan Amino Acids Family Owned Since 1968 GMP Quality Assured Cysteine is a non-essential sulfur amino acid, which plays a critical role in methionine, taurine and glutathione metabolism. It is also an important component of hair, nails and the keratin of the skin. Cysteine stabilises protein structure and aids in the formation of collagen, being thereby indispensable to skin, hair and nail health.