Also called shilajit, Asphaltum is a mineral wax with medicinal properties highly prized in Ayurveda as a natural remedy for sexual dysfunction and premature ejaculation. It’s rich in antioxidants and believed to stimulate the release of cytokines by activated immunologic cells.
(Source: Pure & Appl. Chem., Vol. 62, No. 7, pp. 1285-1288, 1990.)