Beconfident® X1 Refill "NEW" whitens teeth easily and safely at home without side effects together with the whitening trays in the X1 Start Kit but also other whitening trays on the market, even made by dentists. - New improved formula with proven clinical results gives whiter teeth within 30 minutes with the latest PAP technology including enzymes such as Bromelain and Papain. - Up to 4 shades lighter teeth within 10 days. - Simple, fast and safe and without side effects. - Developed and produced in Båstad, Sweden. Contains our improved X1 gel that lifts plaque and impurities on the enamel without any side effects. Active ingredients and how they work: The gel contains PAP (E-phthalimido peroxy hexanoic acid) + Sodium bicarbonate + Coconut sulfate which work together to form the best possible hydrogen peroxide-free treatment available today. The PAP ingredient is an organic peracid that creates a strong oxidation. Oxidation is necessary for the bleaching procedure that neutralizes organic double bonds that cause enamel discoloration. However, PAP does not release hydrogen peroxide and the gel is therefore 100% peroxide-free. For the best effect, we recommend that the treatment is carried out for 15 minutes, 10 days in a row until the gel runs out. General recommendations: Teeth whitening removes impurities and discoloration from the enamel, brightens and brings out the natural color of the teeth. Teeth whitening is not a one-time treatment but needs to be repeated at regular intervals to maintain cleaner and brighter enamel.