US skin care brand pH Advantage was developed when plastic surgeon Dr Barry Cohen began investigating skin care ingredients and how they impacted on the skin before and after surgery. Founded around the princi- ple of maintaining an appropriate pH level to maximum effectiveness, the brand now boasts a wide range of skin care products. Barry Cohen spoke to Cosmetic News Weekly about the science behind the brand and the need for people to be able to find products that suit their skin needs at different times of their lives.
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