Super serum

Retinol, a derivative of vitamin A, is supposed to target lines and strengthen thinning skin. Thus, Murad have launched this light undereye serum, which harnesses three types of this ingredient, as well as marine kelp and red algae extract. They say you can see results within a week and, indeed, although it makes skin feel slightly drier at first, we noticed a lightening and brightening of shadows after a few days. Result. Retinol Youth Renewal Eye Serum, £65, Murad, www.murad.co.uk