IntheUKover£9billionayeararespentonbeautyproductsthatpromisetoimproveandtransformus.Buthowmuchofwhattheseproductspromiseisbasedinscientificevidence,andhowmuchissimplymarketingmanipulation?　　CherryHealeyteamsupwithindependentscientiststoputeverydaycosmeticstothetestlikeneverbefore.InagroundbreakingstudycarriedoutbytheUniversityofSheffield,andwiththehelpof25volunteers,shediscoversthatmoisturisersmightnothavethebenefitspeoplethinktheydo.