2 in 1 Teeth Whitening Kit Perfect White - Extreme Whitening Developed to help you achieve professional results in the comfort of your home. Formulated using professional whitening ingredients with 5% hydrogen peroxide. Contains 28 whitening strips (14 upper and 14 lower) and a whitening pen. This ultimate whitening duo leaves you with a white and brighter smile, at all times Maximum Stain Removal. Minimum Teeth Abrasion. Contains Hydrogen Peroxide for effective at home whitening. Contains whitening strips and whitening pen Use once daily for 14 consecutive day Contains Hydrogen Peroxide for effective at home whitening. Contains whitening strips and whitening pen Use once daily for 14 consecutive day.