Withania somnifera– An adaptogenic herb that is a staple of Ayurvedic medicine – more recently, studies have demonstrated its testosterone-boosting effects.
Eurycoma Longifolia (Root) Extract– Eurycoma is known for its effects on libido, and its enhancement on testosterone is backed by dozens of studies.
Mucuna Pruriens Extract– An excellent source of a naturally-occurring dopamine precursor, which is a neurotransmitter that helps testosterone stay elevated and other antagonist hormones stay depressed.
Urtica Dioica containing 3,4-Divanillyltetrahydrofuran– Urtica increases testosterone by multiple mechanisms. Importantly, it inhibits binding of sex hormone binding globulin (SHBG), which increases free testosterone, making it more bioactive.
Abieta-8, 11, 13-trien-18-oic Acid– A powerful aromatase inhibitor that lowers the conversion of testosterone to estrogen, keeping it working longer and stronger.