What is the #9 Enhancer?
Tri-Ethanol-Amine (TEA) which raises the pH of the material and reduces sensitivity. It is for use with in-office material and with at-home use only in special cases. Just add a few drops in the tray on top of the bleaching material. It is for use with 44% carbamide peroxide or to be mixed with 35% hydrogen peroxide gel (see instructions).