New refining technology has Tribulus Terrestris realizing we?re not in Kansas anymore. SCI-FIT's® T-500™ represents the pinnacle of that technology. SCI-FIT's® T-500™ stuffs 500mg of an amazing 40% protodio SCI-FIT's® T-500™ is enhanced absorbabilty with added DHB for outstanding absorption. Don?t call us when you need bigger clothes!