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ishkane3
New Member
 
Joined: 18 Oct 2011
Posts: 3
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Wed Sep 26, 2012 12:08 pm  |
| Lotioncrafter says that the highest % used is 7; I've also read on here that some have bumped it up to 10%. Can I go higher than that? Say 20%? Or will that be damaging to the skin or something? |
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Wed Sep 26, 2012 3:50 pm |
You could give it a try and let us know how your skin looks after a month or so, but tetra C isn't exactly the cheapest active. I personally wouldn't bother using at super high concentrations unless there was a new study done that I missed.
At any rate, I don't really know what it's target percentage is. Every time I go shopping around for scholarly info on it, I keep being lead back to the Fitzpatrick study. The one time I used it regularly, I kept it at 5% and it did just fine there. |
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| Thu Apr 25, 2024 1:11 am |
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