Re: Lawsone = hennotannic acid


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Posted by gloria cosmetics on August 22, 2001 at 23:15:43:

In reply to: Lawsone = hennotannic acid posted by Catherine Cartwright Jones on August 22, 2001 at 23:03:21:

: Lawsone is another word for hennotannic acid. It is the dyestuff in
: henna. Some tests were done to see if pure lawsone was safe to use
as
: a colorant in cosmetics, but some Chinese hampsters told the
: scientists that it was quite toxic.
:
: Lawsone, or hennotannic acid, is in small quantities in henna
leaves,
: small enough to be of no harm. Similarly, huge quantities of
vitamin
: A is very toxic, but you can eat carrots as much as you please
without
: suffering.
:
: Since hennotannic acid is only staining the exfoliating layer of
: dermal skin, there's no way for it to build up in your system and
harm
: you.

 


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