Geistlich Bio-Oss® Collagen consists of 90% Geistlich Bio-Oss® granules with the addition of 10% porcine collagen. Geistlich Bio-Oss® is scientifically proven and is the leading biomaterial in regenerative dentistry. Combining Geistlich Bio-Oss® with highly purified porcine collagen enhances it’s handling characteristics making Geistlich Bio-Oss® Collagen formable and easy to handle.