I agree that a little caution might be well observed.
It's a relatively new product unless I'm much mistaken.

Comparable perhaps to "whitening" toothpaste. A good idea every few days in conjunction with it's duller but healthier cousin, but not to be used everyday lest the enamel be scrubbed away.

Perhaps when you're going out, but don't allow yourself to feel that without it you look bad. That might be the beginning of a culturally imposed dependancy.

You are beautiful on the inside babes. On this site that's the only part we see.