Optimal CollagenOptimal Collagen is a unique formulation that delivers a broad spectrum of major collagen types I, II & III, plus minor types V & X, in an efficacious dose of 20 grams per serving. It also includes a bioactive form of silicon (stabilized orthosilicic acid), clinically shown to increase the absorption and bioavailability of collagen, thus providing a powerful combination to support healthy joints, bone and skin.* Optimal Collagen mixes easily in liquid