Principles for choosing cosmetics for sensitive skin 1. For sensitive skin, safe products must be used for effective protection. It is best to use fragrance-free, preservative-free, surfactant-free, 100% allergen-free, with the highest safety and effectiveness, through clinical trials by dermatologists recognized, laboratory certified safe and effective skin care products. *The following monikers in the ingredients of skin care products are chemicals that can easily cause allergies: alcohol (alcohol), bronopol, sorbicacid (sorbic acid), parabens (preservatives), fragrance (fragrances). If you want to use new cosmetics, you should first do a skin test by applying the cosmetic to be used on the inner part of the wrist where the skin is more delicate and leave it for 24 hours to observe the reaction, if there is an abnormal reaction, such as inflammation, redness, rash, etc., you must avoid using the cosmetic. If there are no adverse reactions, you can use it. 3. Do not assume that products that are labeled as natural will not cause allergies. 4.If you find that you have a sensitive reaction to cosmetics, stop using them and don’t let your skin deteriorate because of a momentary craving for beauty. If the skin sensitivity has a tendency to worsen, it should be diagnosed by a dermatologist. 5, sensitive skin is best not to wear heavy makeup, do not use too much fragrance cosmetics.