The formation of wrinkles is mainly the internal cause, and somatic cell aging is the most fundamental reason for wrinkles in middle-aged and elderly women. This is the law of genetics. With the increase of age, the cell activity gradually decreases and the metabolic capacity weakens, which leads to the growth rate of the number of new cells is lower than that of cell aging, the hydration capacity of aging cells is low, and the photoaging effect is enhanced, which leads to the decline of skin shrinkage and moisture retention, aggravates the deterioration of fibrous tissue, and makes the skin dry and prone to fine lines. The plastic surgery department of Beijing Yin Zhi pointed out that skin aging is accompanied by the decline of sweat gland system and insufficient sebum secretion, which aggravates skin damage and dryness and induces wrinkles.

Insufficient water in body and skin.

As we know, the outermost layer of the skin is the stratum corneum, which can supply moisture in the body, absorb moisture from the outside, and keep the skin moderately hydrated. Generally speaking, the water content of skin is 10 ~ 20%. If it is lower than 10%, the skin will be dry, that is, rough and loose, and wrinkles will appear after a long time.

Mental factors

Often unhappy, impatient and withdrawn, his face often shows a sad, nervous and restrained expression, which affects the expression muscles, produces longitudinal or transverse wrinkles and gradually leads to aging.

Long-term sleep deprivation

Frequent lack of sleep will damage the skin's regulatory function, leading to haggard appearance and easy aging and wrinkling.

overexposure

Excessive exposure will cause skin damage, make the skin of face, neck and hands dry, thin and lose elasticity, make elastic fibers and colloidal fibers lose their normal functions, and make the skin gradually relax and wrinkle.

nutritional status

If the body's nutritional status is good, the skin's nutritional supply is sufficient, and the subcutaneous tissue is full, wrinkles will appear later; If the nutritional status is not good, the skin and muscle tissue will be malnourished, resulting in rough and loose skin and prone to wrinkles.

The temperature of washing water is too high.

Warm water around 30 degrees Celsius is the most suitable water for washing your face. If the water temperature is too high, the sebum and moisture of the skin will be absorbed by the hot air, making the skin dry, and wrinkles will gradually appear on the face over time.