Allies of Skin Mandelic Pigmentation Corrector Night Serum (£90) contains 11 percent mandelic, lactic, and salicylic acid, to promote cell turnover and exfoliate the skin while keeping breakouts at bay. It also has several peptides and extracts, like Rumex Occidentalis extract, that brightens and inhibits excess melanin production. In fact, the Mandelic Pigmentation Corrector Night Serum has exactly eight different brighteners, including vitamin C, and seven different peptides and antioxidants. It even has 1 percent of the retinol alternative, bakuchiol, and niacinamide. The formula exfoliates, brightens, and is anti-ageing — this serum clearly can do it all!