A gentle stain removing treatment for visibly whiter teeth. Supersmile Professional Whitening Accelerator - Extra White n/a Safely and painlessly whitens and remineralizes teeth for fast results. Clinically proven to whiten up to 9 shades in 30 days when used with the Extra White Toothpaste. Improves the color of gums in 30 days when used with the Extra White Toothpaste. Developed and made in the USA by the ''Father of Aesthetic Dentistry'', Dr. Irwin Smigel. Safely and gently removes the stained pellicle on enamel without harsh abrasives.