Supersmile Professional Whitening System - Large is an essential whitening combo comprised of the Supersmile Toothpaste and Whitening Accelerator, which only requires brushing twice a day for significantly whiter teeth. Supersmile's effective Toothpaste and Accelerator work together to dissolve the filmy, stain-attracting protein pellicle that coats teeth, keeping your smile cleaner, lighter and less likely to suffer from bacteria growth. Professional Whitening System - Large includes:Toothpaste (4. 2 oz. )Accelerator (3. 6 oz. ) | Supersmile Professional Whitening System - Large - Original Mint (2 piece) | Dermstore