It is important to read the product description clearly and be alert to abnormal reactions. Please read the product description carefully before using new cosmetics, especially those with sensitive skin or a history of cosmetic allergy. It is best to try it on the inside of the arm or at the root of the ear, and then use it normally after the skin has no obvious adverse reactions (redness, swelling, pain, itching, etc.). ). Pay attention to timely and thorough cleaning and makeup removal after use. If the makeup remover is not thorough, the cosmetics left on the skin surface for a long time will block pores, affect the normal metabolism of the skin, and even cause skin problems such as acne and pigmentation. Once an abnormal reaction is found, stop using the product as soon as possible and immediately clean up the residue on the skin. If the symptoms are serious or can't be relieved after cleaning, you should seek medical advice in time. If you suspect that the purchased cosmetics have quality problems.