similar anecdotal experience
Posted by Zimra on June 7, 2002 at 15:54:53:
affect mixed henna. No big science here, just stories:
I was doing a design on my foot with a j-bottle that had been
sitting out for several days. I squeezed out the watery stuff before
I started applying, but in the design you could clearly see where the
oxygen-exposed paste ended and the less exposed paste began. The
first part of the design had a "week old" look to it, the rest was a
very decent color.
Second story: I was emptying out j-bottles (I tend to accumulate
piles of full ones) into a big bowl. The j-bottles with tips on them
had the extrememely dark "I've sat out WAY too long" color of henna
inside. The one j-bottle that had the white platic lid on it
(probably the only lid I haven't lost!) was a *very* respectable
color, still greenish and fresh looking. The paste in these bottles
was mixed around may 16. Unfortunately I emptied the bottles before I
really noticed, so there was no chance for testing it on skin.
I also have a dyed henna story: I was working on some hennaed
banners, and I decided to use the wonderful henna a friend brought me
from India. It was from a little marketplace, not packaged for
export, and it was dyed, dyed, dyed. 3 days after mixing it was still
dark green. The banner is very greenish-brown. At least now I know
they dye henna for use in India, as well as for export!
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