Natural Factors CurcuminRich Joint Optimizer - High absorption curcumin with supercharged supplement extracts to support healthy joint function. Theracurmin is a natural curcumin preparation that utilizes advanced techniques to reduce curcumin's particle size, increasing the solubility and bioavailability. Joint Optimizer adds white willow, devils' claw, boswellia and InflamRelief complex to Theracurmin to help relieve joint pain associated with osteoarthritis and to offer short-term relief of low back pain.