Modern scientific researches find out that the degree of the delicateness and smoothness of the skin is closely related to the content of in the dermis. Hyaluronidase has closely relationship with the secretory volume of estrogen. Recently, scientists find out that when the estrogen secretion of ovary increases, the estrogen will combine with some specific receptors in the dermis, thus promoting the formation of hyaluronidase. Hyaluronidase can promote the absorption of water, trace elements and vitamins in the skin, so as to make the skin delicate and smooth. Then how to keep the fitness of skin based on diet?

First, drink water appropriately.
Human tissue fluid contains 72% of water, and in the body of adults, water content reaches 58% to 67%. When the content of water is reduced in human body, the skin will become dry, and the sebaceous gland secretion will decrease, so that the skin will lose its elasticity, and wrinkles will appear. To ensure the intake of water, girls should drink about 1200 ml water every day.

Second, eat more food rich in vitamins.
Japanese scholars find out that Vitamin E has an good anti-aging effect for the skin. Vitamin E can destroy the chemical activity of the free radicals, thereby inhibiting aging process. Vitamin E can also prevent the deposition of lipofuscin in the skin. Scientists discover that the formation of lipofuscin has something to do with peroxidated lipid. Foods rich in vitamin E include cabbage, sunflower oil and rapeseed oil. and vitamin B2 are also necessary elements for the smoothness and delicateness of the skin. When the body lacks of vitamin A, the skin will become dry and rough. Lack of vitamin B2 will cause skin cracking and pigmentation. Foods rich in vitamin A are animal liver, cod liver oil, milk, butter, eggs and orange-colored vegetables and fruits. Foods rich in vitamin B2 are animal liver, eggs, milk and so on.

Third, eat more foods rich in .
Glossy and red skin needs adequate blood supply. Iron is one of the main components of heme in the blood. Therefore, you should eat more foods which contain plenty of iron, such as animal liver, egg yolk, kelp and laver.

Fourth, increase the intake of food rich in and elastin.
Collagen can reduce wrinkles on your skin. Elastin can enhance skin elasticity, so as to make your skin smooth and elastic. Foods rich in collagen and elastin include trotter, animal tendon and pig skin.

If you take the above mentioned suggestions, maybe there will be some improvement of your skin.