- Power whitening YF with 40 % hydrogen peroxide (mixed 32 %) is suitable for medical whitening of strongly discolored teeth. - Power whitening YF can be used for whitening of one or more teeth or parts of a tooth, including the intracorneal bleaching of endodontically treated non-vital teeth. - Application 3 x 15-20 minutes in one session. Accessories: - Lip retractor with tongue guard. **For further product information, please contact Chat Support**