Have you heard of shilajit? It's that black, tarry resin that slowly seeps from the walls of high-altitude Himalayan caves. Some see it as the holy grail of health, others as pure madness. But what does the science say? Is it a miracle substance or just another empty promise wrapped in a catchy story?
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Many people who care about the health of their skin, joints and hair take daily collagen supplements or add collagen powder to their morning coffee, tea or smoothie. Although the use of collagen supplements and other collagen products is on the rise, most people do not know what collagen actually is and what it does in our body.