How to make hair black

1, salmon Dr Lisa Dreier, a nutritionist in new york, said that protein and vitamin D in salmon are beneficial to enhancing hair quality, and omega-3 fatty acids in salmon are as important to hair as water is to human body. Fatty acids are beneficial to the health of scalp cells and can prevent scalp and hair from drying.

2. walnuts. Walnut is not only rich in omega-3 fatty acids, but also rich in biotin and vitamin E, which can help hair resist the sun to some extent. In addition, walnuts also contain copper, which helps to keep hair shiny.

3, spinach. Nutrients in spinach, such as iron, beta carotene, folic acid and vitamin C, help to keep hair follicles healthy and make hair shiny.

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Causes of hair yellowing:

1, Malnourished yellow hair: It is mainly caused by high malnutrition. Pay attention to the distribution of diet and improve the nutritional status of the body. Eggs, lean meat, soybeans, peanuts, walnuts and black sesame seeds not only contain a lot of animal and plant proteins, but also contain cystine and cysteine, the main components of hair, which are the best foods for hair care.

2, lack of copper yellow hair: eating some foods rich in copper is good for your health. There is a lack of an important copper-containing "tyrosinase" in the process of hair melanin production. Lack of copper in the body will affect the activity of this enzyme and make the hair yellow. Foods rich in copper include animal liver, tomatoes, potatoes, celery and fruits.

3, radiation yellow hair: eat some high-protein food, help health. Long-term exposure to radiation, such as computer, radar and X-ray work, leads to yellow hair. Pay attention to supplement foods rich in vitamin A, such as pig liver, egg yolk, milk and carrots. Eat more radiation-resistant foods, such as laver, high-protein foods and drink more green tea.

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