Expired White strips and coffee question

I haven't used them since right before my wedding almost 6 years ago.
Was going to buy, but my mom said she had them and would drop them off
I'm the MOH in my SIL's wedding. So wanted to get started on having my teeth look good.
Anyway, she said that they are expired.
Figured the only thing is they may not be as strong.
Thought?
Would you take an unopened, expired Colgate whitening strips or buy new?

Also, do I start drinking coffee through a straw? I remember doing that when I used the strips and wanted my teeth to stay white.

Expired White strips and coffee question

They may just not be as effective like you said. I would give it a try or maybe call company info line and ask.


Also. Crest professional white strips at level 5 is amazing
It's around 60 dollars but worth it

I drink tons of coffee so I whiten often. Drinking through a straw helps. I Also avoid red sauce and red wine.

Re: Expired White strips and coffee question

How expired? If it was a short time, I wouldn't worry about it. If it was a long time - more than 6 mos-1year, I'd be concerned.

I'm a weenie about my teeth. I eat expired food as long as it passes the smell/texture/etc test. but I'd be nervous about a chemical on my teeth.