IntheUKover£9billionayeararespentonbeautyproductsthatpromisetoimproveandtransformus.Buthowmuchofwhattheseproductspromiseisbasedinscientificevidence, andhowmuchissimplymarketingmanipulation?CherryHealeyteamsupwithindependentscientiststoputeverydaycosmeticstothetestlikeneverbefore.Inagroundbreakingstu...