Although the formula in the Oxygenetix foundation (was £49.50, now £35) was originally created to cover the redness of chemical peels, dermatologists started recommending it to treat and prevent blemishes. Described as "the world's most breathable foundation," it increases the oxygen uptake, stimulates the production of skin cells, and, thanks to it's added 2 percent of salicylic acid, doesn't clog pores or create a buildup of bacteria — and if Kourtney Kardashian used it to treat her acne, then you know it's good!