What is l-cisteina?

L-cysteine is a non-essential amino acid that is naturally found in proteins like keratin and collagen in the body. It is also found in high-protein foods like chicken, turkey, eggs, and dairy products.

L-cysteine has antioxidant properties and helps to protect cells from damage. It also plays a role in the synthesis of glutathione, which is an important antioxidant in the body.

In addition to its natural sources, L-cysteine can also be synthesized in a laboratory and is often used as a food additive to improve the texture of baked goods like bread and crackers. It is also used in some hair and skin care products due to its ability to improve the strength and texture of hair and nails.

However, it is important to note that some L-cysteine used in commercial products is derived from human hair or poultry feathers, so consumers who follow a strict vegetarian or vegan diet may want to avoid products that contain this ingredient.