Natrols CetylPure? is an exclusive and patented blend of cetyl myristoleate, a naturally occurring fatty acid. This revolutionary compound works to lubricate joints and helps to promote mobile joint function. CetylPure? is a cutting-edge compound that promotes the relief of joint discomfort following exercise. As our bodies age, the ability to produce some of the nutrients necessary for joint function and cartilage building declines. Natrols CetylPure? helps to nourish and maintain the natural lubricating fluid in joints and cartilage.