Shilajit is an herbo-mineral drug that is found as a tar-like substance oozing from rocks in mountainous regions of India and Nepal. It exists in different varieties that range in color from blackish-brown to blue, white, and red depending on their mineral content. Shilajit has various medicinal uses as a general tonic, to strengthen and boost immunity, and to treat skin diseases, leprosy, headaches, and infections due to its chemical composition of fatty acids, trace elements, and albuminoids. It is commonly marketed in formulated products.