Shilajit is a sticky substance that comes out of the cracks in high mountain ranges of the Himalaya. It's made of animal, mineral, and plant material.
The exact makeup of shilajit depends on where it's found and the temperature. It typically contains vitamins, minerals, essential fatty acids, and amino acids. It also contains the organic acids fulvic acid and humic acid. It's often used as an adaptogen in Ayurvedic medicine and has antioxidant effects.