Onnit’s T Plus formula is the industry leader stimulant-free, pre- workout formula. Designed to increase strength and power output, this formula is used by professionals and the average person who is looking to increase performance. One of the most popular products used by Caveman Athlete’s. In a double blind placebo study T Plus showed an increase of 36% over the placebo. Check out the video below, leave a review, comment and remember to rate this product.