Causes of darkening of facial skin

Causes of darkening of facial skin

People have different skin colors. The world is divided into three races based on their skin color. In the eyes of Chinese people, white skin is more in line with our aesthetic standards. The vast majority of Chinese people have yellow skin due to geographical factors, but some people's facial skin becomes darker due to acquired factors. The biggest factor in darkening of the skin is probably the environment, but of course food or medicine factors are not ruled out.

1. The foods you like are rich in zinc, copper and iron. Certain foods are also the cause of darkening of the skin. Foods rich in metal elements such as copper, iron, and zinc have this disadvantage. These metal elements can directly or indirectly increase the amount and activity of substances such as tyrosine and tyrosinase that are related to melanin production. These foods mainly include animal liver, kidney, oysters, shrimp, crab, beans, walnuts, black sesame, raisins, etc.

2. The drug has affinity to melanin. Many drugs also change the normal skin color. For example, chloroquine has a strong affinity for melanin, which aggravates skin discoloration; about 10% of patients taking quinine develop blue pigment spots on their faces. Sedatives pose the greatest threat to skin color. Those who take them for a long time will develop butterfly spots on their face and neck, and their arms and other parts will turn brown-gray, light blue or light purple. In addition, repeated use of mercury-containing ointments can also leave brown pigmentation on the affected area. More cancer drugs that cause skin color changes

3. Certain diseases are triggering factors. Many diseases can change the normal skin color and make it darker. Among them, the more common ones are endocrine system diseases, chronic wasting diseases, malnutrition diseases, etc. These diseases can cause the skin to turn brown or dark brown, which is particularly obvious in exposed areas such as the face, back of the hands, joints, or areas that are subjected to pressure and friction. For example, chronic liver disease can cause chloasma on the face or darkening of the area around the eyes.

4. The natural environment damages the skin. The culprit is ultraviolet rays, which stimulate the melanin in the skin and induce skin lesions such as freckles. Even on cloudy days, the "ultraviolet rays" are still strong. Ultraviolet rays can cause skin darkening, aging, and wrinkles. Human skin's response to ultraviolet rays causes redness, tanning and increased thickness of the epidermis in acute reactions, and causes skin aging in chronic reactions. In the summer, if you still want to have fair and flawless skin, you should do a good job of sun protection, especially when the UV index reaches 7 or above, it is more likely to damage the skin. You should strengthen sun protection and try to avoid future regrets due to fear of trouble. In fact, humid air, sunlight coming through car windows, and even indoor light bulbs and computers are all the culprits that cause your skin to become darker.

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