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Wed Jun 17, 2009 8:16 am |
So I did my first serum
distilled water
sea kelp
niacinamide
glucosamine
I've been reading many post here and discovered that pH in a cream/serum/cleaner is important. So, I"m a little lost.
Since I'll be adding a preservative to my serum, I think the pH will change, right?
anyone knows what is the optimal pH in a serum?
Thanks a bunch! |
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Tue Apr 15, 2025 2:08 pm |
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