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 belt transmits power from the crankshaft or engine to all front end accessory components. Belts are still one of the most efficient ways to transmit power. Drives many components in your engine. Primary function supplies power to the steering system, water pump, air conditioner and alternator. How is it Made? Serpentine belts are made of EPDM, an extremely durable compound used to extend the life of serpentine belts. Why Does it Fail? Belts are standard wear items and should be inspected at roughly 50,000-70,000 miles.