Caffeine As A Fat Burner Caffeine is a stimulatory compound extracted from coffee beans.. it is an ingredient commonly found in certain nootropic medicines, performance enhancers and fat burners Also known as Coffee Extract, Tea Extract, Liquid Crack (slang) 1,3,7-Trimethylxanthine Sources Caffeine is found in: Coffee Beans Green Tea ( Camelia Sinensis) Cocoa and Cacoa … Read moreCaffeine