London: Grey hair could soon be a passe, thanks to scientists who claim to have created a pill from a fruit extract that prevents the inevitable, and most apparent, sign of ageing.After more than a decade of trials, the daily drug -- developed by a team at global cosmetics giant L`Oreal – is expected to go on sale within four years, a newspaper reported.L`Oreal hopes it will lead it to victory in the race for the world`s eight billion pounds hair colour market, in which both sexes reach for bottles of dye.Bruno Bernard, head of hair biology at the company, said: "We think it will have a market among men as well as women. We intend people to take it in the same way as a dietary supplement. It won`t be expensive."The drug uses a compound from an unidentified fruit that mimics tyrosinase-related protein 2, an enzyme that protects pigmentation production; it aims to prevent a process called oxidative stress, when hair cells succumb to harmful anti-oxidants and go grey, say the scientists.Bernard added: "Ideally you would take it for your whole life but realistically we would encourage people to start using it before their hair goes grey because we don`t think it can reverse the process once it has started."
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