Nitric oxide is a vasodilator, which means that it expands the blood vessels within the body, allowing for more blood to be able to circulate freely throughout the body. Increases the density of sperms: To give your partner a strong orgasm you need dense sperm. The Mandime harde reviews can help dense the sperm. You can order it from the official site of the product. Then you have the guarantee that you buy original product. You can place the order properly by entering the correct details in the registration form.