Moreover, by comparing the new whitening gels with hydrogen peroxide (HP, the traditional whitening inredients) gels, the whitening effect of polymer composite gels with 5% PAP were equivalent to the gels with 3% HP, and the composite gels with 12% PAP were also equally to the gels with 8% HP. More importantly, it was proved that PAP tooth whitening gel was much safer and more reliable than HP based products. It indicated that PAP based tooth whitening products can replace low-concentration peroxide teeth whitening gel in the home-market.”

Legal status for using Hydrogen Peroxide (HP) for at home whitening from 2013
European markets allow 0.1% of hydrogen peroxide (HP) for over-the-counter products and up to 6% at the dentists office under close inspection of a professional.