Home Cosmetic Science Talk Formulating Thickener recommendations for acidic products?

  • Thickener recommendations for acidic products?

    Posted by SKLChemistry on September 6, 2023 at 7:42 am

    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?

    Graillotion replied 2 months, 3 weeks ago 4 Members · 3 Replies
  • 3 Replies
  • Formulate50

    Member
    March 1, 2024 at 4:33 pm

    2 options I’ve worked with are Sepimax Zen, and Hydroxyethylcellulose

  • Zoya

    Member
    March 2, 2024 at 12:47 am

    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! 🙂

  • Graillotion

    Member
    March 2, 2024 at 2:22 am

    Never worked with it…but have heard that Tragacanth Gum….likes to limbo with pH. 🙂

    • This reply was modified 2 months, 3 weeks ago by  Graillotion.

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