... gel.our non-peroxide cold light gel could be near 25%HP's effect We offer multiple concentration levels of each, as ... and dental clinics2,Professional cold light gel,Hydrogen peroxide gel (HP): 3%-50%Carbamide peroxide gel (CP):9%-44%Syringe available ... /pen is available !3,Gel strips and dry strips in HP & CPMOQ for OEM, 3000-5000 boxes 4,Oral spray, 5 ...