Rhulief is a patented extra strength natural formula containing rhuleave-k, a combination of turmeric rhizome extract and Boswellia in a base of black sesame seed oil. This blend of 100% active components helps maintain healthy joints and comfort and flexibility and contributes to supporting normal brain, liver and immunity functions. Maintains joint health and flexibility. Supports brain and immune health. Powerful antioxidant support. High absorption formula.