Gluma Desensitizer is formulated with 5% glutaraldehyde and 35% HEMA combined to prevent hypersensitivity on teeth. Gluma is quick and easy to use no-mix application provides sensitivity control as it latches to dentinal tubule to make a strong seal. Gluma desensitizer directions come in package. Works well with universal hybrid composites. Gluma comes in a single pack. 5 ml bottle.