1 capsule lasts up to 48 hours. Rock Solid erections as quick as 30 minutes. Intensified orgasms - WOW! Increased stamina and endurance. Recovery time between ejaculations is less than 5 minutes! Regain the Thunder - Leave her yearning for more! Stiff Nights is comprised of a special blend of Herbs, Mushrooms and Greens. This particular blend has taken us 7 years to perfect. It is this special blend that makes Stiff Nights so potent while being 100% natural.