Beauty and skin care whitening methods are broadly divided into three: First, external, such as the face can be used externally with whitening function of the mask, the mask on the face, whitening ingredients will gradually penetrate into the subcutaneous, damage to melanin cells, while the mask can also make the face hydrated, tender and smooth. Second, internal, you can eat more food containing vitamin C, such as oranges, oranges, while the diet should be careful not to eat spicy and stimulating food, these foods are easy to make the skin acne, do not smoke, drink alcohol, easy to cause capillary dilation, increasing the risk of hair follicle blockage. Third, the injection of whitening needles, whitening injection is the whitening component of the drug through intravenous injection into the body, is a more popular way of whitening, but only for the acquired due to excessive sun exposure caused by the darkening is more effective, for patients with congenital dark skin, whitening injection effect is not particularly obvious.