thanks Catherine!

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Posted by hannah on March 22, 2004 at 11:12:05:

In reply to: Re: a few mix and care questions posted by Catherine Cartwright-Jones on March 21, 2004 at 15:58:24:

: Its important to understand that the henna dye molecule binds into
the
: keratin protein in the hair. Its not going anywhere once it binds.
: Its also important to understand that the scales of keratin that
make
: up hair are different in different people, and that the angle of
these
: scales reflect light in different ways.
:
: What does acid do to henna? It chews up the cellulose in henna so
you
: get more dye available. What does acid do to hair? It chews it up
: too, so it reflects light more. Alkalines chew up hair better, but
: they're lousy for skin and stuff.
:
: The ground level way of expressing that is that some folks have
glossy
: hair wherein the scales are solid and smooth and stuck down and some
: folks don't. Depends on genetics and environment. Think about the
: difference between fishline and old rope. Raggedy hair takes up dye
: good because its got more points to bind with dye molecules. Glossy
: fishline type hair doesn't take up dye as well.
:
:
: I haven't ever had any problem with shampoos, but I just use
: whatever's cheap.

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: : Its important to understand that the henna dye molecule binds into : the : : keratin protein in the hair. Its not going anywhere once it binds. : : Its also important to understand that the scales of keratin that : make : : up hair are different in different people, and that the angle of : these : : scales reflect light in different ways. : : : : What does acid do to henna? It chews up the cellulose in henna so : you : : get more dye available. What does acid do to hair? It chews it up : : too, so it reflects light more. Alkalines chew up hair better, but : : they're lousy for skin and stuff. : : : : The ground level way of expressing that is that some folks have : glossy : : hair wherein the scales are solid and smooth and stuck down and some : : folks don't. Depends on genetics and environment. Think about the : : difference between fishline and old rope. Raggedy hair takes up dye : : good because its got more points to bind with dye molecules. Glossy : : fishline type hair doesn't take up dye as well. : : : : : : I haven't ever had any problem with shampoos, but I just use : : whatever's cheap.
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