Thanks,Catherine... and some info for the rest of us re: metallic salts in hair dyes

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Posted by Jane on April 18, 2004 at 11:59:11:

In reply to: Re: Question Related to Technical Stuff Below... posted by Catherine Cartwright-Jones on April 18, 2004 at 09:46:02:

Thanks, it makes sense the metallic dyes and NOT henna would be the
culprit. I did a quick search on metallic salts in hair dyes and
found this somewhat informative site:
http://www.keratin.com/ai/ai020.shtml

Most important to some of us who may worry that we inadvertently put
some of these metallic salts into our hair is the following paragraph
at the end of the site I refer to above:
----------
To determine if hair has been colored by a metallic dye, mix 1 oz. of
20-volume peroxide with 20 drops of 28% ammonia. Submerge 20 strands
of hair in the solution and let it sit at room temperature for about
30 minutes. If the hair lightens rapidly, the hair contains lead. If
there is no reaction after 30 minutes, the hair contains silver or
bismuth. If the solution starts to boil and emits a foul odor, the
hair contains copper. Hair that has no metallic salts on it should
lighten only very slightly.
-------------

: The big disasters are from the metallic oxides in the "compound
henna"
: products reacting with the chemicals in synthetic dye.
:
: Its in the section linked below.

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: Thanks, it makes sense the metallic dyes and NOT henna would be the : culprit. I did a quick search on metallic salts in hair dyes and : found this somewhat informative site: : http://www.keratin.com/ai/ai020.shtml : : Most important to some of us who may worry that we inadvertently put : some of these metallic salts into our hair is the following paragraph : at the end of the site I refer to above: : ---------- : To determine if hair has been colored by a metallic dye, mix 1 oz. of : 20-volume peroxide with 20 drops of 28% ammonia. Submerge 20 strands : of hair in the solution and let it sit at room temperature for about : 30 minutes. If the hair lightens rapidly, the hair contains lead. If : there is no reaction after 30 minutes, the hair contains silver or : bismuth. If the solution starts to boil and emits a foul odor, the : hair contains copper. Hair that has no metallic salts on it should : lighten only very slightly. : ------------- : : : The big disasters are from the metallic oxides in the "compound : henna" : : products reacting with the chemicals in synthetic dye. : : : : Its in the section linked below.
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