Small bubble facial is a way to nourish the skin, mainly for oily, large pores, blackheads or acne-prone skin. The principle is that small bubbles carrying nutrients act on the skin through some pinhole circuits to purify the skin and remove blackheads or pimples. It should be noted that small bubble beauty is a deep cleansing project, can remove the skin waste keratin, beauty seekers should act according to their skin quality, the frequency is too high may damage the barrier function of the stratum corneum, resulting in certain hazards, as follows: 1. In the small bubble deep cleaning treatment, if the beautician’s technique and strength control is poor, the instrument in the skin for too long, will lead to skin redness and swelling phenomenon. Redness is an inflammatory reaction of the skin, the repair time generally varies from 6-72 hours; 2, thin stratum corneum, skin sensitive people should carefully choose small bubble beauty, otherwise it can cause keratin damage or allergic reactions; 3, in small bubble beauty 1-2 months later, due to sebaceous gland oil, skin contact with the outside world and a variety of pollution in the air, blackheads will appear again. Therefore, it is recommended that seekers go to professional medical beauty institutions to develop a detailed and effective treatment plan according to the skin condition in order to achieve better cosmetic results.