... min5. Oxygen concentration: >90%Applications:1,skin rejuvenation,removal facial blemish,tighten large hair pores,deeply cleaning,and improve ... tone of skin2,scar removal:removal scar caused by laser treatment,burn,surgical etc. 3,wrinkle removal:removal fine lines,wrinkles ... and spider veins4,Acne removal:remove acne,blackheads and acne ...