Resorbable CollaFlex™ membranes are derived from porcine pericardium through careful purification and sterilization processes to avoid antigenic reactions. The non-cross-linked membranes retain the natural microfibril structure of the pericardium, providing excellent biocompatibility and extended barrier function for guided bone regeneration applications. CollaFlex™ membranes are easily drapable and can be fixated with sutures and bone tacks.