More powerful nitric oxide booster (L-Arginine Nitrate more powerful compared to L-Arginine). Works with the first use. Clinically shown (In double-blind, randomized placebo-controlled clinical study): To promote: stamina, sex drive, confidence. To promote blood flow with the first use: 90% had results within 60 minutes, 97% within 90 minutes. Clinically proven formula. 10 natural premium herbal extracts to promote blood flow, stamina, sex drive and confidence.