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  • Facial Mist Preservative Help

    Posted by Rhonda on May 19, 2024 at 9:32 am

    I am recreating a facial mist from a class project formulation and I only have Geogard ECT available even though the formulation uses Geogard Ultra.

    Here’s my issue, although ECT is water soluble, it has a limit of 0.8% when used in ONLY water-based products, therefore requiring it to need a solubilizer for complete miscibility.

    I used 1.0% Caprylyl Capryl Glucoside and now it feels “soapy” when applied. I’m thinking of reducing it but I’m not sure by how much. Any suggestions?

    Water 69, rose water 25, cucumber extract 3.5, solubilizer 1, ECT 1, Aloe powder 200:1 0.2, potassium sorbete 0.2, sodium phytate 0.1

    Rhonda replied 4 weeks, 1 day ago 2 Members · 8 Replies
  • 8 Replies
  • PhilGeis

    Member
    May 20, 2024 at 5:44 am

    pH?

    • Rhonda

      Member
      May 20, 2024 at 5:50 am

      pH = 4.0

      • PhilGeis

        Member
        May 20, 2024 at 6:01 am

        How much will your formula accommodate?

        • Rhonda

          Member
          May 20, 2024 at 6:04 am

          pH has to remain around 4.0 because the potassium sorbate loses some of it’s effectiveness around 4.5 and more if it gets to 5.0.

          • PhilGeis

            Member
            May 20, 2024 at 6:13 am

            The difference is prob not significant, esp as you’re adding more via ECT.

            • Rhonda

              Member
              May 20, 2024 at 6:17 am

              I thought about that earlier. I’ll probably use Geogard 221 and disregard using a solubilizer completely. That way I’ll get rid of the “soapy” feel and only have the pH shift to contend with. I might purchase Ultra. Thanks for the responses!????

            • PhilGeis

              Member
              May 20, 2024 at 7:50 am

              Suggest you look also at similar products from major guys on the market

            • Rhonda

              Member
              May 20, 2024 at 8:22 am

              Already in the works!

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