Green Tea Leaf, Cayenne Pepper, Guarana, Forskohlii Root and L-Carnitine HCl.
This group anchors RetraBurn's thermogenic and fat-metabolism positioning, combining five ingredients most associated with calorie-burning and energy-expenditure claims in the supplement category.
Green tea and guarana both contribute natural caffeine alongside their catechin and antioxidant content, while cayenne's capsaicin is studied for a brief, modest thermogenic effect.
Forskohlii root and L-Carnitine HCl round out the group with more targeted mechanisms — forskohlii via cyclic AMP signaling, and L-carnitine via its role transporting fatty acids into mitochondria for energy production.