Chogan 100% Organic. Sun Oil with St. John's wort and Walnut Shell is a powerful tanner thanks to the Walnut Shell that is traditionally used to protect and tan the skin. This substance reacts with the keratin present in the hair and in the epidermis, forming a brown pigmentation complex. It is a natural "reservoir" of carotene and flavonoids. The effect that St. John's wort has on the skin is particularly interesting because it not only helps to obtain a golden tan, but also manages to give a dark color to the skin without harming it. DERMATOLOGICALLY TESTED CPNP REFERENCE: 2460963 DEADLINE 6 months after opening