Hydro-oxygenation is the use of strong pressure oxygen and water by the hydro-oxygenation therapy instrument to act on the skin in the form of spray stream, and its effects and hazards are as follows: 1. Effects: Hydro-oxygenation makes active water molecules and pure oxygen enter the deeper layers of the skin quickly to accelerate the absorption of nutrients in the skin. Through strong pressure to penetrate the skin pores and skin cracks, from the epidermis layer to penetrate the dermis layer. On the one hand, it stimulates the regeneration of collagen fiber tissue, and on the other hand, it can directly accelerate the oxygen supply for the skin, which promotes the cell metabolism. Hydroxy Revitalizing can also thoroughly remove the deep dirt in the pores, so that 99% of the pure oxygen molecules can maximize its bactericidal effect. It can also play an anti-inflammatory role, and has good clinical effects for purifying the metabolic environment of skin tissues and getting rid of acne. It also has the functions of whitening and rejuvenation, facial lifting, getting rid of dark circles, improving skin fatigue, matte yellow and gray, etc. It can thoroughly remove skin waste and inject oxygen and hydration into the skin to replenish nutrients; 2. Hazards: The beauty and skin care effects of hydro-oxygen rejuvenation are not permanent and their maintenance time is relatively short. The side effects are mostly due to the fact that the candidates go to irregular beauty institutions. As the operating environment and the instruments are not properly sterilized, it is likely that the bacteria will be brought into the skin pores during the operation process, which will cause a series of inflammatory reactions such as skin redness and pain.