Cos Purple Sweet Potato liquid is an anthocyanin naturally extracted from the purple sweet potato. This colourant gives cosmetic formulations a wonderful fuchsia-pink colour and can be incorporated particularly easily and homogeneously due to its liquid form. Even with a low application concentration of 0.05%, an intense colour can be achieved. Our first studies on a shower gel formulation with pH 5 and a solid shampoo bar show very good results in colour stability. Cos Purple Sweet Potato liquid is currently undergoing COSMOS and Natrue certification and is suitable for all aqueous cosmetic formulations. Let summer in and be inspired by this bright colour.