Debra Messing has partnered with Colgate to front the brand's latest campaign, and shares her best beauty tips while promoting the Optic White toothpaste.

The Will & Grace star commented 'One of my go-to and trusted products is Colgate Optic White, especially High Impact White - because it has hydrogen peroxide, the key ingredient to deeply whiten my teeth. I've been using it for years and it really works!'.