What is a Cysteine (C₃H₇NO₂S) ?

Cysteine (C₃H₇NO₂S) is a sulfur-containing amino acid that plays a crucial role as a building block of proteins. It is composed of an amino group (-NH₂), a carboxyl group (-COOH), and a sulfur atom, which is essential for the formation of disulfide bonds (-S-S-). These disulfide bonds help stabilize the three-dimensional structure of proteins, making cysteine important for the function of many enzymes. While cysteine can be synthesized in the body, it is also obtained from dietary sources such as eggs, dairy products, meats, nuts, and legumes. Cysteine is a key component of the antioxidant glutathione, which reduces oxidative stress and supports the immune system. Cysteine is also used in the beauty industry for its beneficial effects on hair health, as it contributes to the strength and growth of hair. Additionally, cysteine supports liver detoxification and plays a role in drug metabolism and toxin elimination. While cysteine offers many health and beauty benefits, excessive intake can pose risks, making it important to consume it in appropriate amounts.

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