Ultra-Premium Carnitine Blend for Anti-AGing, Testosterone & Physique Enhancement. Quadracarn is an ultra-premium, lab-tested blend of carnitines. Distinguishing features:. 4 forms of carnitine + Gymnema sylvestre, a plant with glucose-regulating properties. Ideal for anti-aging, physique enhancement and support of testosterone and sexual health. Customers report that Quadracarn provides “total body” benefits including energy, well-being, sexual potency cognitive enhancement, vascularity pumps, muscle hardness and preservation, recovery and more.