Simon Cowell keeps youthful with pure oxygen Now Cowell, 52, has adopted the Hollywood fad for bottled oxygen in order to rejuvenate his skin and reduce stress. A source told the Sun newspaper: "Simon knows he's not getting any younger and is trying every trick to tackle it. It's the nature of the beast. If you are on TV then you have a vanity, for sure. He went on: "Yes, I've had Botox, but not in an obsessive way. Then against, every guy I know who works in the City has had it now. Scientists have cast doubt on the supposed medical benefits of oxygen treatment, saying blood is already saturated with oxygen.