There are many ways to whiten your skin, in daily life you can improve your skin quality by consuming more collagen-rich foods or applying whitening products to achieve the purpose of whitening, but also through medical means: a. Daily life: 1. Whitening products: pay attention to facial hygiene, wash your face with warm water and cleanser in the morning and evening, exfoliate regularly and clean well. Use whitening or hydrating mask to brighten the skin tone, hydrate the skin, you can also apply skin care products with whitening effect; 2, sun protection: sun protection is the basis of whitening, ultraviolet radiation is easy to make the skin darker, daily can carry a sunshade, sun glasses, wear a sun hat, apply sunscreen, spray sunscreen spray, etc.; 3, work and rest: work and rest should be regular, try not to stay up late, staying up late will lead to endocrine disorders, which may cause Skin darkening, poor mental state, digestive system problems, etc.; 4, diet: you can eat vitamin-rich vegetables and fruits, such as cucumber, tomatoes, kiwi, lemon, etc., and collagen-rich foods, such as lamb shanks, pig’s feet, beef tendons, etc. Such a diet can assist other methods together to achieve the effect of whitening. Second, drug treatment: you can use drugs that can lighten and whiten under the guidance of doctors, such as hydroquinone cream, tretinoin cream, azelaic acid cream and other whitening drugs, which can inhibit the synthesis of melanin by melanocytes, so as to achieve better results. Third, medical treatment: such as phototherapy is to use certain spectrum of light to penetrate to the deep layer of skin, decompose pigmentation, close the abnormal red blood, stimulate subcutaneous collagen growth, so that the skin becomes relatively white and shiny. Laser is the use of laser beam directly on the skin, using infrared wavelengths to penetrate deep into the dermis, stimulate the destruction of cells, tighten the skin, lighten melanin, and play a whitening effect. In addition, there are also whitening injections, fruit acid peels and other medical aesthetic means, which need to be seen in regular hospitals.