Potassium vs Sodium Hydroxide vs Other neutralizers in AHA formulas?
I’m looking to get a 5% Glycolic Acid lotion up to pH 4, and I have a customer asking for a very minimal formula without what he perceives as nasty chemicals.
Sodium Hydroxide is OK, but is it interchangeable with Potassium Hydroxide for this kind of formula? TEA is out. Open to other gentle options
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