When you do a moisturizing mask or other care procedures, the moisture value of the skin will definitely be higher, but many times the skin is not well absorbed, and this value will gradually decrease after a period of time.
Dry skin is related to skin dehydration. Drink plenty of water at ordinary times to supplement the water loss of the body and skin, eat more alkaline foods, such as vegetables, fruits, bean products, milk, etc., and reduce the intake of acidic foods, such as meat, fish, onions, etc. Take a bath often and choose the right skin care products.
With the change of season, environment and age, sebum secretion will decrease, making it difficult to form sebum membrane. The cuticle is short of moisture, the skin is easy to be rough and the epidermis metabolism is unstable.
When going out, protect your skin with a moisturizing foundation cream with good anti-ultraviolet effect. Pay attention to eating more foods containing vitamins A, B and E in the diet.
Expand data to improve skin moisture
Scientific experiments show that water is the foundation of human body, and the content of water in human body varies with its development stage. The water in the fetus accounts for about 90%, 80% in infancy, 70% in young adults and 60% or even 50% in middle-aged and elderly people, so the process of aging is also a process of losing water. Skin is one of the largest organs in human body, accounting for about 16% of body weight.
Water is a special and cheap beauty agent, which can protect the skin clean, moist and tender. When the surface water content of human skin is 12 ~ 15%, the skin is smooth and elastic. Once the dryness caused by insufficient water seriously affects skin health.
Studies have shown that if the eyes are dry for 3 hours, one day will be dull and lifeless; Hand drying 1 day, it takes 3 days to restore the original elasticity; When the face is dry for 3 days, the skin will peel and wrinkle, which will accelerate the deposition of skin pigment.
If the drying time exceeds 7 days, it will produce spots and accumulate toxins, which will take 3 months to recover; The whole body is dry for more than 30 days, resulting in various stubborn spots and wrinkles, and the skin aging speed is accelerated for 3 years.
Extended source: Baidu Encyclopedia _ Improve skin moisture