Natural Factors - CurcuminRich Joint Optimizer - 60 Veggie Capsule(s) - NPN: 80054435 -- Natural Factors CurcuminRich Joint Optimizer combines the most trusted, effective, herbal supplements for natural joint pain relief and joint function. This formula includes Theracurmin, the #1 absorbed form of curcumin*, herbal medicine pain relievers boswellia, white willow bark, and devils claw, and antioxidant-rich InflamRelief Complex.*Scientific scrutiny revealed that Theracurmin was more bioavailable on a milligram-to-milligram basis than other leading enhanced and regular forms of curcumin.As measured by SPINS 2014 data.