Dr. Joel Kaplan's original vascular dilating supplements provide natural vigor which promotes healthy erections and enhances sexual drive as well as workout performance. These supplements are designed to help increase blood flow and are an all natural way to achieve stronger, firmer erections. Suggested use: As a dietary supplement take two (2) capsules a day. For best results, take two capsules 20 minutes prior to using Dr. Joel Kaplan's penis pump.