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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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3 Replies
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2 options I’ve worked with are Sepimax Zen, and Hydroxyethylcellulose
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Sepimax Zen, HMW Hyaluronic Acid, Xanthan (there exist good grades which don’t leave a sticky feeling on the skin), Solagum AX (combination of xanthan and acacia for better skin feel), Caesalpinia Spinosa Gum, to mention a few. 🙂 Sepimax Zen is synthetic, has really great texture and skin feel and can handle low pH and even small concentartion of electrolytes. The others fits well into ‘natural’ formulations, also have great skin feel, they make different textured products than Sepimax. Try them out and see how you like them! 🙂
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Never worked with it…but have heard that Tragacanth Gum….likes to limbo with pH. 🙂
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