Thickener recommendations for acidic products?
I’m formulating 2 skincare products (using lactic & azelaic acid) with the final pH goal of 3.8. I’m going for a gel-like serum type of texture/viscosity. Most of my go-to thickeners don’t perform well below a pH of 4. Do you have any recommendations for thickeners that would work at a pH below 4?
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