Green Tea's thermogenic and antioxidant properties have been heavily researched; yet the bio-availability of Green Tea's active compounds, referred to as flavonoids, is considered to be low. NOW T-Lean is formulated with GreenSelect® Phytosome for increased bio-availability. GreenSelect Phytosome is a caffeine-free, standardized extract of green tea with phospholipids for increased bio-availability. NOW's GreenSelect® Phytosome has been research proven to promote fat loss and a healthy metabolic rate in those individuals exercising and eating a well-balanced diet. Additionally, GreenSelect Phytosome protects against oxidative damage by providing support to your antioxidant defense systems.