Nature's Way Cayenne 40000 HU Description: Guaranteed 0.25% Capsaicin Cayenne Pepper ( Capsicum annuum ) fruit is a blood-red warming herb that invigorates multiple body systems. Special blending guarantees 0.25% capsaicin with a consistent potency of 40,000 H.U. (Heat Units).Their Cayenne is carefully grown, tested and produced to certified quality standards. Disclaimer These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.