Nitric Oxide and Erections: The Science Behind Sexual Function Nitric oxide activates specific enzymes that cause smooth muscle relaxation in blood vessels, enabling increased blood flow to the erectile tissues This mechanism allows for the physical changes necessary for achieving and maintaining an erection
The Role of Nitric Oxide in Erectile Dysfunction: Implications for . . . Penile erection is a complex process involving psychogenic and hormonal input, and a neurovascular nonadrenergic, noncholinergic mechanism Nitric oxide (NO) is believed to be the main vasoactive nonadrenergic, noncholinergic neurotransmitter and chemical mediator of penile erection
Nitric Oxide Supplements: Uses How They Work - hims Research has found that nitric oxide plays a key role in facilitating erections by relaxing the vascular muscle that supplies your penis with blood when you’re sexually aroused