1, genetic cause: The black private parts before a certain age, or the serious black private parts, is probably our genetic cause. 2, normal pigmentation: when people reach a certain age, they will deposit a certain amount of melanin, so it is normal for our private parts to turn black with age.

You can use lycopene. In addition, rest more, drink more water and eat more fruits and vegetables. Appropriate supplementation of cellulose, vitamin C and vitamin E, and proper exercise will help to dilute the color.