What causes dry hands in summer

In summer, people will feel that the skin on their hands is a little dry. If this happens, it may be because they do not pay attention to maintenance, causing their skin to lack some moisture. That is why the skin feels particularly dry when touched. Especially for older people, they should pay more attention and replenish more water.

Reason 1: Aging: It is one of the causes of dry skin. As estrogen levels in the body decrease, sebum secretion decreases and the skin's ability to retain moisture decreases, causing the skin to become drier and drier. This is also the reason why the elderly go to the dermatology department of the hospital for treatment in autumn and winter.

Secondly, the stratum corneum on the surface of the skin contains a "natural moisturizing factor", the amount of which determines the water content of the skin. It is common among modern women to overuse skin care products, which can reduce the skin's ability to secrete oil and lead to dryness and dehydration.

Reason 2: Climate change: Changes in the external climate will cause abnormal secretion of sebaceous glands and sweat glands, making the skin surface rougher and the resistance weakened. Over time, you may become habitually dry.

Reason 3: Lack of sleep, fatigue, excessive weight loss and picky eating: Lack of sleep, fatigue, excessive weight loss and picky eating can cause considerable harm to the body and worsen blood circulation. When health is out of balance, the skin loses its vitality and becomes prone to dryness and roughness.

Reason 4: Bathing with too hot water, using irritating soaps or cleansers: In addition, bathing with too hot water, using irritating soaps or cleansers, or female endocrine changes, such as decreased estrogen secretion in women after menopause, can also cause dry skin. However, these are short-term phenomena and can be improved immediately.

In addition, due to the presence of acidic substances such as urea, uric acid, salt, lactic acid, amino acids, and free fatty acids on the surface of human skin, the skin surface is often weakly acidic.

(1) The normal pH value of the skin surface is approximately 5.0 to 7.0.

(2) The minimum can be 4.0 and the maximum can be 9.6.

(3) The average pH value of the skin is about 5.8.

The pH value of healthy Asian skin should be between 4.5 and 6.5.

Only when the skin is within the normal pH range, that is, in a weakly acidic state, can the skin be in the best state to absorb nutrients. At this time, the skin's ability to resist external erosion, as well as its elasticity, luster, moisture, etc. are all in the best state.

In the latest survey, 70% of women think their body skin is dry in winter and 40% have dry skin on their faces; in summer, the proportions are 34% and 15% respectively.

In clinical skin moisture tests, the normal epidermal moisture content should be 25%, but today the skin moisture content of urban women has dropped to around 15%.

For this reason, 60% of women now focus their skin care efforts on skin moisturizing.