Colgate Optic White debuts overnight teeth whitening pen
NEW YORK — Colgate-Palmolive Co.’s Colgate Optic White brand has launched Colgate Optic White Overnight Teeth Whitening Pen designed to work while users sleep. The advanced whitening technology, which is powered by hydrogen peroxide, removes years of stains in a week, the company said. The whitening pen formula goes on wet and dries quickly after