Cnidium monnieri is a warm, bitter leafy annual with flowers that grow in clusters. It has been used for over a thousand years in Traditional Chinese Medicine for its positive effect on the libido.* And is considered a reproductive aid and aphrodisiac.*

In Traditional Chinese Medicine, Cnidium is often combined with other herbs to help overcome sexual malaise and strengthen sexual potency.* It is thought that Cnidium Monnieri may naturally increase nitric oxide release, which may be its key in obtaining and sustaining erections in men and enhancing sensitivity to the clitoris thereby increasing a woman’s sexual experience.*

Maca is a hearty plant related to the turnip and radish that is cultivated high in the Andean Mountains at elevations from 13,000-15,000 feet. Maca plants grow in terribly harsh cold with poor agricultural soils. As such, nearly all maca cultivation in Peru is carried out organically, as there are few pests naturally occurring at such high altitudes, and maca itself is seldom attacked.

In Peru, Maca has been an important traditional food and medicinal plant for about 2000 years. Historically, it has been used for trade and during the Spanish colonization as a form of currency. Maca is regarded as a highly nutritious, energy-imbuing food, that may enhance strength and endurance while supporting healthy feelings of love and desire.*

Independent studies may suggest that Tribulus terrestris extracts slightly increase hormone levels, though leaving them in the normal range.*

*Tribulus has been shown to enhance sexual behaviour in an animal model.[1] It appears to do so by stimulating androgen receptors in the brain.*

References:

1) Gauthaman K, Adaikan PG, Prasad RN. (2002). "Aphrodisiac properties of Tribulus Terrestris extract (Protodioscin) in normal and castrated rats". Life Sci 71 (12): 1385–96. doi:10.1016/S0024-3205(02)01858-1. PMID 12127159.

Mucuna pruriens is a tropical legume from an annual, climbing shrub with long vines that can reach over 15 m in length.

Mucuna pruriens seeds contain high concentrations of levodopa, a direct precursor of the neurotransmitter dopamine.* Which has been the primary reasy it has long been used in traditional Ayurvedic Indian medicine for health conditions including Parkinson's Disease.[1][2] In addition to levodopa, Mucuna also contains serotonin (5-HT), 5-HTP, nicotine, N,N-DMT (DMT), bufotenine, and 5-MeO-DMT.

L- Dopa contains natural secretagogues which may support the body's ability to stimulate the natural release of growth hormone. An increase in dopamine levels may also optimize the production of hormones leading to increased sex drive and improved sexual performance for both men and women.*

References

1) Manyam BV, Dhanasekaran M, Hare TA. Effect of antiparkinson drug HP-200 (Mucuna pruriens) on the central monoaminergic neurotransmitters. 2004. Phytother Res 18:97-101. DOI: 10.1002/ptr.1407 PMID 15022157
2) Manyam BV, Dhanasekaran M, Hare TA. Neuroprotective effects of the antiparkinson drug Mucuna pruriens. 2004. Phytother Res 18:706-712. DOI: 10.1002/ptr.1514 PMID 15478206