Description

Cysteine is a non-essential amino acid important for making protein, and for other metabolic functions. Its found in beta-keratin. This is the main protein in nails, skin, and hair. Cysteine is important for making collagen. It affects skin elasticity and texture

Pre-Information

Clinical history, suspicion of metabolic diseases or inborn errors of metabolism, fasting recommendation but not requirement, and preliminary diagnosis of the clinician are all necessary. According to doctor's advice, amino acid supplements or drugs need