Shilajit is a rare tonic substance collected by local inhabitants in the Himalayas and as far north as Russia. It has been used for thousands of years as a Rasayana substance in Ayurveda (the traditional health care system of India), and is regarded by many herbalists as the most important natural life supporting substance of Ayurveda. In Sanskrit, Shilajit means “conqueror of mountains and destroyer of weakness.” Shilajit is believed to assist any other herbs it is consumed with, making them more potent and more effective. Authentic, correctly processed Shilajit is extremely safe. It is suitable in small doses for almost everyone on a regular basis, and in higher doses for those who seek to increase vitality and strength, and by those who wish to cleanse the tissues of the body. Shilajit has been shown to increase endurance and overall fitness level by increasing ATP levels. Shilajit up-regulates steroidogenic genes in human skeletal muscle (Shilajit itself is not steroidal). Shilajit improves bioavailability of CoQ10. Shilajit up-regulates genes in skeletal muscle coding for synthesis of collagen.