1. Because many cosmetics and skin care products contain many metal components, some people use cosmetics or skin care products that contain many chemical metal components such as lead and mercury or add spices for a long time. These chemical components have the function of absorbing light, which easily leads to dark spots on the skin. In addition, some people don't know that these products are easy to deteriorate at high temperature, and they often put skin care products in the back seat of the car when they go out. After using the deteriorated products, the skin will itch and grow spots when exposed to light.

2. In addition, excessive chemical peeling: In order to whiten, some people usually do some chemical peeling to separate the cuticle and epidermis of the skin, thinking that the more they do, the better. In fact, if they do it too often, the skin will become more sensitive to light and dry. As soon as the sun shines, it immediately breaks out in a rash and pigmentation is more serious than before.

Methods of preventing skin lead and mercury poisoning;

1, use less natural cosmetics, and thoroughly clean the skin after makeup and before going to bed at night, because the residue and dust that the skin contacts in the air will block pores, cause acne and itching, and for a long time, it will also cause pigmentation, form spots and accelerate skin aging. Therefore, thoroughly removing the dirt on the skin is a very important first step in night maintenance. Choose cleansing oil or make-up remover to clean the skin, use gentle cleanser for deep cleaning, and wash off the cleansing oil and makeup left on the skin surface before.

2. Make-up products are usually used as little as possible, and skin care products are made of pure natural plants, which have hydrating and moisturizing effects. The use of Li 'ao traditional Chinese medicine freckle products, which can improve and repair the skin poisoned by lead and mercury, can not only eliminate the spots, but also have good detoxification, skin care and beauty effects on the skin caused by excessive heavy metal ions such as lead and mercury in the skin caused by long-term use of chemical freckle products, foundation and whitening cosmetics.