In the UK over £9 billion a year are s ent on beauty roducts that romise to im rove and transform us. But how much of what these roducts romise is based in scientific evidence, and how much is sim ly marketing mani ulation?&nbs 　　Cherry Healey teams u with inde endent scientists to ut everyday cosmetics to the test like never before. In a groundbreaking study carried out by the University of Sheffield, and with the hel of 25 volunteers, she discovers that moisturisers might not have the benefits eo le think they do.