Jade Blue Etchant Gel, 1 x 50ml Bulk Syringe. 37% thixotropic phosphoric, non-slump acid gel for enamel and dentin. Washes off completely and easily and does not stain. Has a dark blue color that allows high visibility for precise selective placement. Creates micropores in the enamel surface and removes the smear layer to unblock dentinal tubules. Gluten-Free.