The Zoom WhiteSpeed treatment can make your teeth noticeably brighter after a 45-minute process at your dentist’s office. It involves both a whitening gel and an LED lamp.

Shrena tends to be self-conscious about the shade of her teeth, so she's getting a whitening treatment that will brighten her smile by 8-10 shades.

Zoom teeth whitening is one of the fastest ways to whiten teeth. It claims to brighten your smile up to eight shades in under an hour.

Zoom Whitening Diet: don't eat/drink anything (besides water) because you're scared everything will stain your teeth — Kirbie Johnson (@kirbiejohnson) July 1, 2014 Don't worry, I ate.

Some whitening vets told me the process was painful because they had sensitive teeth. Others said they had no problem at all. I wasn't sure what to do.

ZOOM!, an in-office whitening treatment. The dentists apply a safe whitening gel to your teeth and then use a low-intensity light, to activate the gel.