monoterpene alcohols

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Posted by Catherine Cartwright Jones on October 18, 2002 at 19:15:33:

In reply to: It may not just be one consticuent posted by Lelia on October 18, 2002 at 18:13:01:

Hennotannic acid is hydrophobic. It LOVES petrol, kerosene, dry
cleaning fluid. Those have a major "DON'T GO THERE" factor, though
many indigenous henna artists use them to facilitate superdark stains!
The next level of similar molecules that do the job with a reasonable
level of safety are the monoterpene alcohols.

As far as I can tell, the monoterpene alcohols with their small
molecules (not oils, which tend to have huge molecules) effeciently
release the maximum amount of hennotannic acid into solution and make
it available to saturate our skin cells.

That may be the reason why its possible to get the same superdark
color by a hot overnight wrap with unterped henna or with a brief
unwrapped terp job. If there are fewer dye molecules available, but
enter the skin over a longer period of time, you'd get a similar level
of saturation as more dye molecules available for a shorter period of
time. ? Someday maybe I'll suss this out.

Thats my best shot at explanation.


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