L- Cystine, chemical formula : (C3H7NO2S)2, Form : Powder

L-Cystine is a sulfur-containing amino acid formed by the oxidation of two molecules of L-cysteine, with the chemical formula (C3H7NO2S)2. It is essential for protein synthesis and plays a critical role in maintaining skin, hair, and nail health. L-Cystine is a structural component of keratin, the protein that makes up hair and nails, and it helps in collagen production for skin elasticity. It also acts as a powerful antioxidant, protecting cells from damage caused by free radicals and oxidative stress. Found in high-protein foods like poultry, eggs, dairy, and grains, L-Cystine is sometimes used in dietary supplements to support hair growth, skin health, and overall antioxidant defense. Proper storage in a cool, dry place ensures its stability and efficacy.