What it is: A brightening serum that uses advanced color correcting to temporarily hide stains while you work on your long-term whitening goals.What it does: Purple and yellow are opposites on the color wheel, so applying this brightening serum to your teeth hides the yellow undertones and makes your smile appear brighter. This travel-friendly formula is perfect to use right before big events, nights out, interviews or any time you need an instant confidence boost.Key ingredients:- Color-correcting purple: temporarily hides yellow stains and instantly makes your smile appear brighter- Hydrated silica: removes stubborn plaque and surface stains from teeth, revealing a cleaner, brighter smile- Peppermint oil: an invigorating flavor that helps keep your breath smelling fresh- Xylitol: curbs the growth of harmful bacteria and maintains a neutral pH balance in your mouthHow to use: After brushing, apply serum to a soft-bristle toothbrush and brush for 2 minutes. Spit out excess and rinse your mouth. Use daily up to 2 times per day to support long-term whitening goals. 1 oz. Paraben-free; phthalate-free; sulfate-free Fluoride-free Alcohol-free Cruelty-free