I came across this on Amazon:
Amazon.com: Crest PRO-HEALTH Rinse - 500 ml: Health & Personal Care
I've never seen reviews like this. 134 Reviews
5 star: 9) 4 star: 5) 3 star: 1) 2 star: 6) 1 star: (113)
Average Customer Review
(134 customer reviews)
Most Helpful Customer Reviews
43 of 44 people found the following review helpful:
Stained Brown ; (, July 8, 2006
By David Case (Flint, MI) - See all my reviews
At the beginning mouthwash was fine. Nice not having the alcohol burn and the breath, that my girlfriend hated. So that was nice.
But after extended use for a month it stained in between my teeth brown. It looked terrible and it cost me a one hundred dollar trip to the dentist to scrape that junk off. The dentist advised that it was my mouthwash after hearing it was this Crest mouthwash that I was using. I was surprised that a mouthwash that is suppose to help clean your teeth actually does the opposite.
Beware: Your better off not using mouthwash if you want clean teeth. Or, use Listerine. Comment (1) | Permalink | Was this review helpful to you? (Report this) (Report this)
28 of 28 people found the following review helpful:
Zero stars from me... , January 1, 2008
By Reader - See all my reviews
This garbage put dingy yellow and brown stains on my teeth, especially near the gums. A dental cleaning failed to get them off. If I had known this mouthwash could cause stains, I would never have used it in the first place. If my next dental cleaning fails to remove the yellow on my teeth, P&G may have a lawsuit on their hands. It's to the point where I don't want to even talk or smile. These Pro Health products should be illegal. Comment | Permalink | Was this review helpful to you? (Report this) (Report this)
32 of 36 people found the following review helpful:
A Better Way to Stain Your Teeth Brown Than Chewing Tobacco, February 9, 2007
By C. Kelleher "cmkelleher" (new york, ny United States) - See all my reviews
just joining the chorus - this stuff does not have alcohol in it like Listerine, so it freshens your breath and keeps your mouth germ free for hours. Quite nice, as Listerine leaves alcohol coating (i.e. sugar) in your mouth that then gives you worse breath a few hours after using it as germs love sugar. Crest solves that problem, but adds brown stains after as little as two weeks of use.
If you stop using it, the stains go away in about a month. Your dentist can clean the stains off quickly and effectively and will reassure you the stains are not harmful or permanent. This is little consolation, as who wants brown stained teeth in between dental cleanings?
Bottom line, it amazes me that Crest is trying to market this stuff. The current consumer trend towards unnaturally white teeth is a bit sad, but certainly no one wants brown teeth. Three other people I know who tried this gunk had the same problem, so Crest's bogus claims about "only some people are effected" is pure corporate disinformation. I have no idea why they sell this, why the FDA lets them do it, or why retailers (including Amazon) let them market it to their customers.
Don't buy this, complain to retailers and the Feds, and wait for this and the other Crest Pro Health "innovation" (stannous i.e. staining) fluoride toothpaste to vanish from the market. Crest's marketing team and the whorish dentists they bribed to endorse these products deserve every possible censure. Comments (11) | Permalink | Was this review helpful to you? (Report this)
According to the Crest website the brown stains means it's working!
"Teeth discoloration could actually be one indication, in some people, that the product is working: after the rinse kills germs in your mouth, the dead germs can collect on the teeth surface and create the appearance of a brown stain."
http://www.crest.com/prohealth/mouth....jspEverywhere I've looked there are bad reviews and people who are really pissed off all over the web.