Optima Joint Complex Gel is a carefully designed formulation that may help to maintain healthy joints, bones, muscles, tendons and ligaments. Glucosamine is well documented for its positive effect on joint health and in this unique formulation is combined with Devils Claw, MSM, Menthol and Essential Oils. Initial application creates a pleasant cooling effect due to the menthol content, whilst the essential oils aid circulation to the skin resulting in a warming sensation.