Using the RLZ Male Enhancement Supplement does two things in each user. First is that it improves the nitric oxide levels inside the body which dilute the blood vessels and make them carry more oxygenated blood. It means it improves the blood circulation and oxygen-carrying capacity of the cells. it ensures improved blood circulation in and around the penis, which strengths its muscles. The continuous supply of nutrients increases the size of the penis and causes long term, hard erections .