Reviewers are seeing 'insane' hair growth from this viral serum, so we asked a derm how it works

Are the before and after photos too good to be true?
The Healthy @Reader's Digest on MSN

We asked 4 dentists to name the best mouthwash—and they all said the same thing

While that minty burn sure seems like it's working, oral hygiene experts explain why that's not what you want in your rinse.