What It Is: LUSTER Pro Light Teeth Whitening System - $90 @ asos.com. 

Why I Like It: If she’s heavy into Twitter, Instagram or Facebook, chances are she always wants to be on point and that includes her smile. This whitening system is quick and soooo easy! Just rinse with the Accelerator Mouth Rinse, brush each tooth with the Super Whitener Gel, apply the activating whitening light for 2 minutes and voila, done!

Each system will complete 20 whitening sessions.