💖2-pack Bundle of Brand New, instant teeth whitening pen. 💖Professional Teeth Whitening made accessible and convenient in a portable, ready-to-use gel pen. Effective for me and lived up to the promise of up to 4 shades whiter teeth in a week. 💖Made in the USA. Active ingredient is 6% Hydrogen Peroxide. 💖Bundle to save on shipping! 💰💰💰