Theophylline (Theacrine, 1,3,7,9-tetramethyluric acid) is a purine alkaloid found in the leaves of wild bitter tea (Camelliakucha Hung T. Chang). Its molecular structure is one more methyl group than the common caffe ine in tea. It is precisely because there is one more methyl group than caffe ine, bitterophylline has a completely different physiological function and health effect from caffe ine, which has attracted widespread attention from academics and medical scholars.

1. Supports healthy metabolic activity and energy production
2. Decreases physical discomfort associated with intense exercise
3. Reduces perceived exertion from exercise
4. Increases cellular protection through antioxidant activity
5. Supports a positive mood and decreased feelings of stress and irritability
6. Increases motivation to exercise and accomplish tasks
7. Increases neural drive

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