What it is:A quartet of powerful, smile-whitening pens in four flavors.What it does:Discover this easy, handy way to dramatically whiten your teeth. BriteSmile's technology safely and gently delivers your most naturally brilliant smile. Lightweight, portable, easy-to-use pens with brush tip applicators can whiten teeth up to eight shades. You can see improvement in as little as two days. Each pen will last three to four weeks.This set contains:- 0.09 oz pen in Original (refreshing mint flavor)- 0.09 oz pen in Vanilla Mint (mint with a subtle sweet vanilla flavor)- 0.09 oz pen in Winterberry (mint with a subtle cinnamon flavor)- 0.09 oz pen in Melon Mint ( mint with a subtle melon flavorWhat it is formulated WITHOUT:- Parabens- Sulfates- Synthetic Fragrances- Synthetic Dyes- Petrochemicals- Phthalates- GMOs- TriclosanWhat else you need to know:More than 1,500,000 customers have experienced the BriteSmile difference: a healthy way to counteract tooth stains caused by the natural aging process, coffee, tea, wine, or smoking. This effective whitening solution does not contain alcohol, sugar, or gluten.