Whether cystine tablets can regrow hair is mainly considered in the following aspects. Cystine is present in the hair and has a certain promotion effect on the synthesis of keratin in the hair, which is usually used to treat dystrophic alopecia a little better. Therefore, patients with dystrophic alopecia can take cystine tablets orally to achieve a therapeutic effect. In the case of androgenic alopecia, the use of cystine tablets is usually not very effective. Androgenic alopecia is a hair loss phenomenon that occurs mainly due to high levels of androgens in the body. In treatment, oral finasteride tablets are needed, and topical medication can be chosen for topical application of minoxidil solution every night before bedtime. Therefore, for malnutrition alopecia, you can use cystine tablets, while in the diet, nuts also contain certain cystine, can supplement cystine and trace elements, but also can play an auxiliary role in hair growth.