AHA Renewal Serum is a clarifying formula with an alpha hydroxy acid that gently but thoroughly exfoliates, and hydrators to reduce the visible signs of ageing and promote brighter, firmer and more radiant skin. Lactic acid (8%) removes dead skin layers, speeds cell turnover, reduces the appearance of discolouration and smooths the appearance of fine lines and wrinkles. Allantoin, sodium hyaluronate and vitamin B5 hydrate, while green tea and arnica soothe the skin.