It has the function of emollient, but not whitening. Applying watermelon rind to the face can increase the nutrition of the skin from the outside, promote the metabolism of facial skin, make the skin moist and tender, and prevent summer Facial pigmentation caused by excessive sun exposure. The method is to wash the face with warm water first, then use the leftover watermelon rind to gently rub the face along the direction of the muscles. After 15 minutes, wash the melon rind juice with warm water, 1-2 times a day.