Prairie Naturals? best-selling for Men is better than ever! Re-formulated and improved by award-winning Naturopathic Doctor, Jonathan Beatty, the new Vigor Force is now in soft gel capsules providing an improved delivery system within an enhanced nutrient base. Now with more ?Sexy Time? ingredients ? Eurycoma longifolia jack (Tongkat Ali) Rhodiola rosa, Tribulus terrestris, Panax ginseng, Ginkgo biloba, Saw palmetto and Pumpkin seed oil, Vigor Force gives men just the right kind of energy lift.