Patients with skin allergies often ask how to choose cosmetics. In fact, no matter how expensive cosmetics are, they only serve the purpose of sun protection, moisturizing and cleansing. Those skin care products that claim to be able to “anti-wrinkle”, “whitening” and “spot removal” are more gimmicky than effective. The reason is that the various “essences” and “nutrients” that are added to the product are simply not absorbed by our skin. There are even unscrupulous businesses that add heavy metals to their products in order to achieve the “efficacy” of rapid “whitening”. In addition, to have healthy skin, you should develop good habits, a balanced diet, regular sleep, do not smoke, less alcohol; this may be more important than just pay attention to the application of cosmetics and do superficial work.