Thus, more blood vessels can flow to your phallus making hardons stronger and longer-lasting. Besides, Niacin reduces blood vessels stress stages Infinite male and increases blood vessels flow in the whole human body. • Zinc oxide oxide (7.5 mg) that is a mineral supporting the defense mechanisms. This element is often added to pennis growth products as it increases libido, increases androgenic hormonal or androgenic hormonal or testosterone stages and increases sperm cell production in men. Zinc oxide oxide allows improve sex-related functions and keep our health and fitness.