Shilajit is a natural substance common in Ayurvedic medicine. It contains antioxidants and minerals that may benefit health, but more research into its use is necessary. Shilajit is a sticky, black, tar-like substance that comes from rocks in high mountain ranges. People can take it as a supplement in powder form. Shilajit was traditionally sourced in India and Tibet, though it is now found in many other countries. Its compounds may be beneficial for many conditions.