L-Cysteine

L-Cysteine

Cysteine is a conditionally essential amino acid for the human body—it can normally be synthesized from methionine (an essential amino acid), but under conditions of insufficient methionine intake, during infant development, or in disease states, it needs to be supplemented through the diet. The core characteristic of its molecular structure is a thiol group (-SH, also known as a sulfhydryl group) in the side chain. This group confers strong chemical reactivity, making cysteine not only a key raw material for protein synthesis but also indispensable in antioxidant defense, protein structure stabilization, and detoxification metabolism. Due to its unique thiol functionality, cysteine is widely applied in the food industry, pharmaceuticals, and molecular biology experiments, particularly valuable in antioxidant research and protein purification. 

1. This product is for scientific research use only. Please do not use it for medical, clinical diagnosis or treatment, food and cosmetics, etc. Please not store it in a general residential area.

2. For your safety and health, please wear a lab coat and disposable gloves and masks when operating.

3. The experimental can be affected by a variety of factors, and the relevant treatment is limited to the product itself, and does not involve other compensation.