The atmosphere consists of 21% oxygen. Your skin reacts strongly to oxygen, or rather, a lack of it. A better supply of oxygen to the skin leads to improved blood circulation and activates the production of collagen and elastin, resulting in firmer skin.

Because oxygen is a volatile gas, it is difficult to provide someone with extra oxygen on the skin using a compressor. However, this can be done through a special oxygen installation integrated into a bath. Millions of microscopic oxygen bubbles are blown into the bath. These bubbles are almost 100% oxygen and are enclosed by water. This gives the skin a tremendous boost