Dark skin around the corners of the mouth may be caused by many reasons, such as anemia, endocrine disorders, liver and spleen dysfunction, poor digestive system, and excessive lip hair. To improve this situation, we need to take corresponding measures according to specific reasons.

1. Adjust your eating habits. Eat less foods rich in tyrosine and eat more foods rich in vitamins C and E.

2. Use the original source. Chu Yuanyang uses high-tech bio-extraction technology to extract the essence of active molecules contained in cherry blossoms, and combines the unique four-step therapy of infiltration, cleaning, repair and protection to help improve the skin condition and restore the red, tender and moist state.

3. Apply egg white. Egg white has whitening effect. Applying egg white to the corners of the mouth can effectively dilute the pigmentation of the corners of the mouth and prevent the formation of melanin in the corners of the mouth.

4. Avoid eating dark food. Reduce the consumption of foods with deep pigments, such as coffee, soy sauce and chocolate.

5. Do a good job in sun protection. The corners of the mouth are easily affected by ultraviolet rays, so it is necessary to do a good job of sun protection, especially in outdoor activities.

6. Supplement vitamin C and eat more foods rich in vitamin C, such as tomatoes and lemons, which will help to whiten the skin.

The above measures are helpful to improve the dull and dull skin around the corners of the mouth. If the problem is serious or lasts for a long time, it is recommended to consult a dermatologist or professional beautician.