Ant Manor’s answer on March 22, does hair also need sun protection? The correct answer isneed, if you answer correctly, you can receive 180g of chicken feed per day!

Hair is composed of keratinocytes. Most of the keratinocytes are keratin. Keratin is composed of a long amino acid chain. This amino acid chain has about 20 kinds of amino acids, most of which are cystine. When exposed to sunlight, cystine in the hair absorbs ultraviolet rays and protects the scalp. However, after exposure to the sun, cystine absorbs a large amount of ultraviolet rays, which will break and decompose its own disulfide bonds. The keratin in the hair will be denatured and broken, and the hair will lose its original moisture and nutrients. Therefore, the hair will be damaged. Sun protection is also required.