Is there a source of catechin and theaflavin without caffenine?

Yes, Calli Tea provides all the benefits of green tea without the effects of caffeine.  Calli does contain camellia sinensis, which is green tea, bu it is perfectly combined with several different herbs to maximize the benefits and minimize the negative qualities posessed by other teas. Calli has been tested for caffeine levels and it does not contain enough to detect.  Some say it has about the same amount of caffeine as is found in a piece of chocolate cake.  Calli does not contain added sugar, artificial sweetener, or chemicals and is an excellent replacement for coffee, tea with excess caffeine, or other herbal beverages that contain medicinal herbs. Calli is made with food grade herbs and has been known to stimulate fat metabolism, which contributes to reduced cholesterol and natural weight loss.