Shilajit is widely marketed as a natural testosterone booster, but what does clinical research actually reveal? Human trials, including double-blind studies published in Andrologia, demonstrate that daily supplementation with purified shilajit resin over 90 days can support statistically significant increases in total and free serum testosterone, alongside precursor hormones like DHEAS. However, results depend heavily on product purity and standardized fulvic acid concentration. Unprocessed raw rock exudate carries heavy metal risks, making third-party lab verification essential. Explore the evidence behind shilajit, compare its mechanisms against common misconceptions, and learn how to verify batch-specific certificates of analysis.