The technicians at Simply White specialize in whitening teeth, first painting them with a whitening gel, then accelerating its work with a beam of blue light. However, the bleaching gel doesn't have to work via peroxide. The technicians' love of nature shows through in the potted plants that adorn their homey, chartreuse-accented office and in their natural whitening gel. Their organic formula, combined with blue accelerator light technology, is applied to teeth for 15-30 minute intervals. Meanwhile, the blue light works to accelerate the chemical reaction, for a result that can brighten teeth up to 10 shades. Their slightly stronger peroxide formula, meanwhile, can strip away up to 14 shades of staining.