Tribulus terrestris is the #1 selling testosterone booster, and the best example of a supplement that increases libido, but has no effect on testosterone.
Ab belts may cause muscle contractions if used properly. But the belt alone cannot produce six-pack abs. The real challenge to ab definition is the layer of fat that lies right under the skin, hiding muscle tone.
The secret is the Ab Rocket Twister's exercise efficiency technology. It starts by offering resistance on the way down and on the way back up for double the impact. Get ripped, washboard abs in half the time! It not only works as a great abdominal machine, but also as a pilates assister.