Where can I get EGCG? Customer Service July 06, 2018 15:42 Updated This powerphenol is in AutophaTea, which provides 70-150 milligrams of EGCG per tea bag. Related articles What are Powerphenols? What is Turmeric and where can I purchase it? Can Berberine cause upset stomach? Where can I buy Resveratrol? Why am I gaining weight with intermittent fasting and fats? Comments 0 comments Article is closed for comments.