Argyreia speciosa

Also known as Vidhara and is used as a tonic for sexual enhancement and greatly assists in increasing sperm count.

Maca

Also known as Lepidium meyenii is responsible for increasing energy and stamina levels in the body and, more popularly, for its effectiveness as an aphrodisiac.

Nicotinic acid
Extremely useful in the manufacture of sexual hormones. Nicotinic acid is also responsible for the release of histamine in the body and this forces the blood vessels to allow more blood flow and creates a 'sex flush' that closely simulates a man's natural sexual response. Nicotinic acid is proven in solving orgasm-related issues.

Pyridoxine Hydrochloride
Involved in the proper functioning of the immune system. It is also needed for the synthesis of the neurotransmitters serotonin and dopamine and to clear the blood vessels to allow for a greater volume of blood to flow to the penis during arousal. This aids in firmer erections.