... acne, papilla acne, improving the appearance of lipidic skin and acne pit.3. Skin care: skin whitening and softening, facial lifting and tightening, ... are long;Only act on skin surface layer,can not reach deeper of skin.Whenas oxygen&water device shield those abuse ago ... ,no side-effect,also can melt collagen,vitaminC into water,speed skin renew.The treatment depth controlled artificially,safe,easy to ...