The Association of Circulating L Carnitine, Butyrobetaine and Trimethylamine N Oxide Levels with Gastric Cancer Amazon.com: 5% Nutrition Rich Piana Liquid L Carnitine 3150 Premium 4 Source Blend + GBB, The Super Carnitine (Mandarin Orange) : Health & Household Bricker Labs Carniblast Liquid L Carnitine 3000mg plus GBB GBB Gamma Butyrobetaine Weight Loss Bodybuilding 10Grams Athletes Scoop Included eBay If you all know me, you know I greatly dislike the idea of "fat burners." They don't exist and it's an improper term for this category of supplements. BUT thermogenics do exist. Gamma Butyrobetaine HCL Benefits: A Comprehensive Guide