a substance called a non-essential amino acid that boosts nitric oxide production in the body. Nitric oxide helps your arteries relax and work better, which improves blood flow throughout your body. When combined with L-Arginine the results are even better.

a butterscotch-smelling root vegetable that belongs to the radish family. It grows at high altitudes in the Andes Mountains in South America, and it's been grown for more than 3000 years. Studies found that maca root can increase libido in both men & women when taken orally.

a plant from Ayurveda where the root and fruits are used for male virility and general vitality, respectively. The roots enhance libido without affecting testosterone while the fruits appear to be potently protective of organ function.

a plant from Nigeria whose stems are used to support libido, improve athletic performance, and support body building.