15 Fall Must-Have Beauty Buys That Editors Love This September

After getting a full smile makeover last year, complete with teeth reshaping and whitening, I have been a huge stickler for keeping my smile vibrant as possible. Colgate Optic White Toothbrush + Whitening Pen ($15) has been a huge help in getting my teeth whiter and getting me out the door in a jiffy, because the toothbrush has a built-in whitening pen that comes with it. The hydrogen peroxide in the gel of the pen helps to keep my teeth porcelain white, and there's no rinsing required.

— KJ