Common Walnut (Juglans regia L.) tree comes from eastern Europe and now is cultivated throughout North America, Europe, North Africa, and other temperate regions. It is also known as Persian walnut, English walnut, Carpathian walnut, Madeira walnut. Common Walnut is grown for food due to edible seeds, called walnuts, as well as for herbal and cosmetic purposes. Common Walnut Leaf and its preparations are used externally as a natural bronzing substance in cosmetics (self-tanning agents) and in ha