Dietary Supplement. Green Tea Extract Phytosome. Promotes Healthy Body Composition. Clinically Shown to Aid in Weight Management. Increased Bioavailability*. Vegetarian/Vegan Formula The antioxidant and thermogenic activities of green tea have been extensively studied; however the bioavailability of its active constituents, known as flavonoids, is generally reported to be low. Now® T-Lean™ features GreenSelect® Phytosome has been clinically tested and shown to support healthy metabolic rate and weight management in those eating a well-balanced diet and getting the proper amount of exercise. In addition, Gr.