Tribulus supplies protodioscin which increases levels of testosterone, luteinizing hormone, dehydroepiandrosterone (DHEA), and dihydrotestosterone. Shilajit supports testosterone synthesis by boosting DHEA this the main precursor of testosterone. Boron increases the metabolism of the total testosterone in your body to free testosterone by inhibiting the hormone aromatase. Diindolylmethane (DIM) produces more ‘good’ estrogen metabolites, which compete with testosterone for protein binding, helping to maintain a higher ‘free’ testosterone level. Stinging Nettle elevates free testosterone levels by reducing conversion of androgens to estrogens via aromatase inhibition.