Indeed, I found lots of sites which implicate H2O2 in causing black tongue.

Marshall


On 9/5/2012 9:46 AM, Del wrote:
Wonder if this person was using hydrogen peroxide or other oxidizer?
My tongue started turning black when I used a hydrogen peroxide mouth wash for a while.
Also when I used gly-oxide drops to swish in my mouth.
I looked it up and did find black tongue listed as a possible side effect of oral hydrogen peroxide use.
Del
*From:* Neville Munn <mailto:one.red...@hotmail.com>
*Sent:* Wednesday, September 05, 2012 9:27 AM
*To:* silver-list@eskimo.com <mailto:silver-list@eskimo.com>
*Subject:* RE: CS>nebulized silver and black tongue
Sounds like if information is hard to get there's probly a lot *NOT* being said? I'd say it's self inflicted by means of which we will in all probability never know.
N.

------------------------------------------------------------------------
Date: Tue, 4 Sep 2012 21:13:10 -0700
Subject: Re: CS>nebulized silver and black tongue
From: aubuchon.da...@gmail.com
To: silver-list@eskimo.com

Unfortunately, the person in question hard to get information from. In the future I hope to get the bottle of whatever he was using and confirm that it was ionic. I won't be able to know if anything was mixed with it though, but if they followed the instructions they were given, they would not have. In any case, you look at your tongue, you see "hey it looks a little different", and there is no risk of getting any serious cosmetic problem. You just stop. I also don't know how "black" the word "black" actually means or if it is even permanent.
Sorry I don't have more details.  I am someone distanced from this case.
David

On Tue, Sep 4, 2012 at 9:05 PM, James McDonald <kscma...@yahoo.com <mailto:kscma...@yahoo.com>> wrote:

    what ppm? ionic or colloidal silver?  What was in the CS?
    ------------------------------------------------------------------------
    *From:* David AuBuchon <aubuchon.da...@gmail.com
    <mailto:aubuchon.da...@gmail.com>>
    *To:* silver-list@eskimo.com <mailto:silver-list@eskimo.com>
    *Sent:* Sunday, September 2, 2012 4:16 PM

    *Subject:* CS>nebulized silver and black tongue
    Hi All,

    FYI, I need to report on a negative result from nebulized EIS.  A
    person nebulized it for lung cancer.  He was alternating days with
H2O2. He stopped it after his tongue reportedly turned black. His lung tumor also remained unchanged in size. This
    unfortunately also weights against the few anecdotes we have of
    lung cancer benefitting from nebulized silver.

    David


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