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Locked: Expired Mouthwash - Safe to Use?

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  • Dec 8th, 2008 2:27 pm
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Deal Fanatic
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Feb 20, 2006
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Expired Mouthwash - Safe to Use?

Hey guys,

Is it safe to use expired mouthwash? I have a bottle that expired about 2 years ago, but I've been using it a couple times already and it seems okay (didn't notice the expiry date until today)
EDIT: Just to clarify, I didn't buy it recently, it was in my closet for a few years I guess..I kept using the newer bottles I was buying without looking further in my closet for older bottles I guess

Is it still safe to use?

I asked a dental hygenist, and she said it should be okay, but was not definitive, so, any dentists/oral expert opinion?

And BTW, this seems like a stupid question/joke thread, but, its not really, is it safe to use? I even googled for an answer and couldn't find any definitive answers...

Can an antiseptic really go bad?
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Deal Addict
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Apr 4, 2002
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I suggest you return it to the store after using it a few times.
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abu_sme wrote:
Dec 8th, 2008 12:57 am
I suggest you return it to the store after using it a few times.
Oh sorry, just to clarify, I bought it a while ago but I guess it got tucked away to the back of the closet until I pulled it out recently.
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Apr 29, 2001
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Mark77 wrote:
Nov 16th, 2011 9:37 pm
That's not very nice....and you're missing out on a lot of valuable knowledge if you ignore me. Your loss.
Deal Guru
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Sep 3, 2003
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shannn wrote:
Dec 8th, 2008 12:58 am
Oh sorry, just to clarify, I bought it a while ago but I guess it got tucked away to the back of the closet until I pulled it out recently.
Glad you didn't take it the wrong way... the previous poster is referring to this thread.
Deal with it.
Deal Addict
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Mar 20, 2007
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sounds kinda disgusting, just buy another. better safe than sorry.
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Nov 18, 2004
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I don't think stuff like that truly goes bad. I think it just becomes less potent.
kuqdew wrote:
Jan 31st, 2008 11:24 am
And FYI, I make pretty good marks in school and is in the gifted class.
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KorruptioN wrote:
Dec 8th, 2008 1:15 am
Glad you didn't take it the wrong way... the previous poster is referring to this thread.
Oh gosh, thats disgusting, haha
ricebowl wrote:
Dec 8th, 2008 1:18 am
sounds kinda disgusting, just buy another. better safe than sorry.
I figured I should err on the side of caution, but, it just seems odd that an antiseptic would go "bad"
drucillica wrote:
Dec 8th, 2008 1:26 am
I don't think stuff like that truly goes bad. I think it just becomes less potent.
I figured this too, just wanted to clarify


Hmm, maybe I'll do some cool experiments with the mouth wash, haha
Otherwise, I guess I should throw it away...or down the toilet, or something safe...
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Jr. Member
Jul 31, 2006
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be on the safe side and throw it out? you people have got to be kidding. this person is not ingesting this product, which is alcohol based, and thus poses no risk at all. my god is our society becoming afraid of everything.
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Jan 8, 2007
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Medici wrote:
Dec 8th, 2008 1:15 pm
be on the safe side and throw it out? you people have got to be kidding. this person is not ingesting this product, which is alcohol based, and thus poses no risk at all. my god is our society becoming afraid of everything.
+1

Sheesh. It's the killer of stuff, it doesn't die.
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Jul 5, 2004
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I also once had a bottle of expired mouthwash. I still used it. It's not like I was drinking the stuff.
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May 22, 2005
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It "should" be ok, but like someone else mentioned, it's $4/bottle you might as well get another one.

To the two posters above, you may be correct in that it's alcohol based (and you may not as there are a good number of non-alcohol based mouthwashes out there), but the potency of the mouthwash may have been diminished significantly when used beyond it's shelf life. Not to mention that if it isn't alcohol-based, the chemical cocktail put together to make the mouthwash may have broken down, or worse, began breaking down the plastic bottle around it.


Edit: Post #888 :D Heh... The Chinese runs strong in this one.
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Aug 12, 2007
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I usually give my expired mouthwash to the vagrants. They seem to like it a lot. :D
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Feb 2, 2005
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It contains alcohol? Should be ok right?
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Jan 21, 2008
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Most things require an expiry date, and most are always on the safe side. In the case with mouthwash and even most medications they just become less affective over time. So don't be surprised if you get a cavity down the road because you used expired mouthwash. I doubt that will happen though.

Personally I eat a lot of things that are supposedly "expired", if it passes the sight test and the smell test, I move on to the taste test.

FYI...honey is the only food that doesn't go bad.
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