Dermatologists at The University of Manchester carried out a clinical trial on 60 volunteers with typical signs of sun-damaged skin and found that the cosmetic, No7 Protect & Perfect Intense Beauty Serum, could improve some of these clinical features. The study, published online in the British Journal of Dermatology today (Tuesday, April 28), showed that 70% of individuals using the beauty product had significantly fewer wrinkles after 12 months of daily use.