In article <607 at vice2utc.chalmers.se> khun at .uucp () writes:
>>Can someone tell me if we have any evidence that vitamine A is good for the
>skin? It is supposed to smoothen out wrinkles if you dissolve it in oil and
>rub it onto your skin, but I do not know if this is scientifically proven.
>Also, do you have to mix the vitamine with something else to make it work
>this way?
I don't know whether Vitamin A is useful for de-wrinkling
skin or not, but I can answer the question about dissolving it in oil.
Skin is basically waterproof, but it can be penetrated by oils...
and, thus, a compound dissolved in oil could pass through the skin.
(epithelial cells, like all cells, are contained by a lipid (fatty) membrane,
which is impermeable to water, but not to oily substances)
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".sig quotes are dippy"|Kenneth C. Moyle kenm at maccs.dcss.mcmaster.ca
- Kenneth C. Moyle |Department of Biochemistry MOYLEK at MCMASTER.BITNET
|McMaster University ...!uunet!mnetor!maccs!kenm
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".sig quotes are dippy"|Kenneth C. Moyle kenm at maccs.dcss.mcmaster.ca
- Kenneth C. Moyle |Department of Biochemistry MOYLEK at MCMASTER.BITNET
|McMaster University ...!uunet!mnetor!maccs!kenm
