Sourced purely from coconuts, Brain Octane C8 MCT Oil converts into brain-powering, fat-burning ketone energy. It helps control cravings and improves cognitive performance to keep you sharp. Bulletproof Brain Octane Oil is flavorless, so add it to smoothies, salad dressings, Bulletproof Coffee and more. 100% Caprylic acid triglycerides from coconut oil. Pure caprylic acid harvested from the most ketogenic part of the coconut. Caprylic acid, a medium-chain triglyceride (MCT), is an energizing, easy-to-digest quality fat.