The chogan sun oil with St. John's wort and walnut shell is a strong tanning product, since walnut shells are traditionally used to protect and tan the skin. This substance reacts with the keratin present in the hair and in the epidermis and forms a Braun colored pigment complex. It is a natural "storage memory" of carotene and flavonoids. The effect of St. John's wort on the skin is particularly interesting, since it not only contributes to a golden tan, but also gives the skin a dark color thanks to its smooth properties without damaging it. L'Olio Solare Chogan con IPerico e mallo di noce è un forte abbronzante, data la presenza del mallo di noce che viene traditional impiegato by protegger ed abbronzare la Pelle. Questa sostanza reacise con la cheratina presente nei capelli e nell'epid.