The Lowdown: Vitamin C is a must for any anti-ageing regime as it protects skin against free radical damage (pollution, UVA and UVB rays), it helps brighten and to a certain extent also helps to fade brown blotches and pigmentation from blemishes. This particular product is one of the most effective I have tried to date and smells great too (quite citrusy). It contains Tetrahexyldecyl ascorbate, a super stable form of vitamin C plus soothing Vitamin E – it helps boost cell turnover for younger-looking skin and is completely non-comedogenic,( meaning it won’t clog pores).  It sinks into skin effortlessly, layers seamlessly under any moisturizers or make up you want to put on top, leaving a radiant glow.