Can skin friction turn black?
Some people like to rub their skin hard when taking a bath, hoping to wash it clean, but they don't know that excessive force or repeated rubbing may also lead to skin blackening, which is called "friction melanosis". The mystery of the disease has not been fully revealed, but the relationship with improper rubbing strength has been confirmed by experts, mainly due to strong mechanical stimulation such as friction and oppression on local skin, which mostly occurs in people who rub hard with bath towels or chemical fiber rubbing towels.
In fact, there are many factors besides the sun that make people black. Some foods are the cause of skin blackening, such as foods rich in copper, iron, zinc and other metal elements: animal liver, kidney, oysters, shrimp, crab, beans, walnuts, black sesame seeds, raisins and so on.
Extended data:
Whitening method
1, do a good job of water supply.
It is necessary to do a good job of replenishing water. Drink more water at ordinary times. If the indoor humidity is not enough, you can use a humidifier. At the same time, we should do a good job of hydrating facial skin. This requires choosing a toner suitable for our skin. The key issue is not to be allergic.
2. Wash your face correctly.
The method of washing your face should be correct, the water temperature should be appropriate, and towels should be dried frequently to avoid breeding bacteria. Then, choose the right cleansing products according to your skin. For dry skin, do not use high foam cleansing products, but use mild cleansing milk with moisturizing effect. Normal skin can be used once in the morning and once in the evening. Dry skin, like normal skin, should not be used too often, and oily skin should be used three times a day. In short, the purpose is to keep the skin clean.
3. Pay attention to maintenance
After cleaning and hydrating, what needs to be done is further skin care. It is dry in autumn and winter. If you don't pay attention to nourish the skin, it will cause a lot of water loss in the skin, which is easy to form false wrinkles. Don't worry too much about fake wrinkles. Keeping enough sleep, reasonable nutrition intake, choosing suitable skin care products and insisting on facial massage every day can promote facial blood circulation and reduce false wrinkles.
4. Reasonable eating habits
In order to cope with the dry weather in autumn and winter, drink plenty of water to replenish the water lost in the body and skin. In addition, a reasonable diet can improve people's physique and help to delay aging. Because human body fluids are weakly alkaline, we should eat more alkaline foods, such as vegetables, melons and fruits, and bean products. Can make the skin delicate and smooth.
People's Network-Rubbing your skin hard in the shower will also turn black.
How to make skin white and tender? Four strokes are easy to get!