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1 Absorption Enhancers on Mon May 17, 2010 7:30 am

sara

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Here are a list of absorption enhancers, we have to take into account toxicity level of each item, and how much is safe to get absorbed.

Some of these enhancers can be very irritant to the skin, the ones are been used widely in cosmetics are urea and propylene glycol.

I know there are few websites that promote natural products, posting claims about propylene glycol been unsafe to use but it was found by FDA’s experts, that propylene glycol can be used safely in cosmetics at concentrations up to 50%.''





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Alcohols and glycols
“A variety of solvents have been identified as 'absorption enhancers'. Ethanol, diethylene glycol, propylene glycol, manitol, hexylene glycol, polyoxyethylene glycols, among others, have been shown to increase the cutaneous permeation of inumerous compounds.”
Urea and derivatives
Urea is one of the constituents of what is known as the Natural Moisturizing Factor, shown when combined with propylene glycol to be great enhancer.
Essencial oils, terpenes and derivatives
Approved by FDA to be generally regarded safe. Although not good option for depigemntation.
There are others in the list like acetone which is very irritant to the skin.
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2 Re: Absorption Enhancers on Tue May 18, 2010 12:52 am

Golden Girl

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I love this post and have just printed it. thanks for this. It's odd how many of these natural skin care companies may claim this is unsafe or that is unsafe..and then turn around offering a more expensive solution. But they fail to mention that at certain percentages and when not abused, these such as propylene glycol can be used quite safely. Ethanol seems to be the most popular form of alcohol used in formulations to help dissolve and a good solvent, how come?


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All Day Chemist Hq 4% (lightener)
RX Suncare: Sport Sunblock SPF 50 (sunblock)
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3 Re: Absorption Enhancers on Tue May 18, 2010 11:34 am

sara

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You very welcome GG

Ethanol is polar the higher the polarity the better it is as solvent. Acetone( nail vanish remover) is very polar but can be very harsh on the skin.


Of course there are other factors, otherwise water will do as it is very polar but it will not dissolve mono.

So in order of polarity water comes the highest then acetone which is harsh on skin so not good choice then comes Ethanol up to certain concentrations can be used as good solvent.

4 Re: Absorption Enhancers on Tue May 18, 2010 11:55 am

allure

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Sara, you are a doll! Thanks. I did some digging recently too and found a few of these skin enhancers. I will be keeping this info handy! I read about the acetone and thought who would ever use that on their skin? I sure wouldn't!

5 Re: Absorption Enhancers on Tue May 18, 2010 12:06 pm

sara

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allure wrote:Sara, you are a doll! Thanks. I did some digging recently too and found a few of these skin enhancers. I will be keeping this info handy! I read about the acetone and thought who would ever use that on their skin? I sure wouldn't!

There was a forum site promoting skin lightning, use to advice of acetone as solvent. Lol people did use it!

6 Re: Absorption Enhancers on Tue May 18, 2010 12:18 pm

allure

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OMG Sara!!! Acetone smells bad and when I get my nails wrapped I want to puke not only that when they soak your nails in acetone, they have to add oils to the fingers. LOL

7 Re: Absorption Enhancers on Tue May 18, 2010 12:40 pm

sara

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During my research we used acetone like no tomorrow because it is cheap, and can dry anything. We use to wash our glass wear and rinse it with acetone as it absorb water very fast before we put the glass ware in the oven to dry.

We always wore gloves as it is very drying to the skin. I couldn’t believe that people can be that stupid to put nail vanish remover to their face but they did.

8 Re: Absorption Enhancers on Tue May 18, 2010 12:59 pm

allure

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Wow Sara, people would do anything huh? I bet there are risk factors associated with using acetone on the skin. Sheesh, I don't want to even think about the itch factor using this with MQ and Ra!

9 Re: Absorption Enhancers on Tue May 18, 2010 6:00 pm

Golden Girl

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The smell of acetone alone is so strong. If it has the ability o dissolve hardened nail polish, who know what else it is able to dissolve! Along with killing brain cells if inhaled too much.


_________________
My Current Skin Lightening Regimen Is:
Neutrogena Acne Wash Pink Grapefruit Foaming Scrub (cleanser)
Tretinoin/Retin-A 0.05% (exfoliant)
All Day Chemist Hq 4% (lightener)
RX Suncare: Sport Sunblock SPF 50 (sunblock)
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10 Re: Absorption Enhancers on Fri May 21, 2010 11:14 am

allure

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GG I can imagine it melting my darn skin off especially mixing it with other potent substances! Yikes. Nail polish remover should just remain that, remove nail polish. End of story.

11 Re: Absorption Enhancers on Fri May 21, 2010 8:31 pm

Golden Girl

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allure wrote:GG I can imagine it melting my darn skin off especially mixing it with other potent substances! Yikes. Nail polish remover should just remain that, remove nail polish. End of story.

LOL. yes


_________________
My Current Skin Lightening Regimen Is:
Neutrogena Acne Wash Pink Grapefruit Foaming Scrub (cleanser)
Tretinoin/Retin-A 0.05% (exfoliant)
All Day Chemist Hq 4% (lightener)
RX Suncare: Sport Sunblock SPF 50 (sunblock)
-----------------------------------------------
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