L-alanyl-L-cystine has a relatively high safety level in cosmetics and is generally considered to be safe. The following is an analysis from aspects such as its properties, functions, and relevant 1.safety evaluations:
Basic Properties: L-alanyl-L-cystine is a dipeptide composed of alanine and L-cystine, and it belongs to a naturally occurring amino acid derivative. It is often used as a skin conditioning agent in cosmetics.
2.Functions in Cosmetics: It has functions such as moisturizing and promoting skin metabolism. It can help the skin retain moisture, making the skin soft and smooth. It can also participate in the metabolic process of skin cells, which is helpful for maintaining the normal physiological functions of the skin.
3.Safety Evaluation:
Mild and Non-irritating: Generally, it is mild to the skin and is not likely to cause allergic or irritating reactions. This is because it is composed of natural amino acids and has good compatibility with the skin. Most people will not experience adverse reactions such as redness, swelling, or itching after using cosmetics containing this ingredient.
No Obvious Toxicity: Toxicity tests through routes such as oral and dermal administration have shown that within the normal usage concentration range, L-alanyl-L-cystine has no obvious toxicity. Whether used for a short term or a long term, as long as the product complies with relevant quality standards and usage specifications, it usually will not cause harm to the human body.
No Teratogenicity and Mutagenicity: Relevant studies have not found that L-alanyl-L-cystine has teratogenicity and mutagenicity, and it will not have adverse effects on the reproductive system and genetic materials.
However, very few people may have individual sensitivity to L-alanyl-L-cystine and experience discomfort after use. In addition, if the concentration of this ingredient in cosmetics is too high or the product quality is not up to standard, there may also be certain safety risks. But overall, in compliant cosmetics, L-alanyl-L-cystine is an ingredient with good safety.
