Home Cosmetic Science Talk Formulating General Preservatives in butter

  • Preservatives in butter

    Posted by ashley on May 18, 2024 at 4:19 pm

    Hello!

    Do you need an additional preservative to final product if you add an aloe that already has a preservative in It to the solid phase (cooled after heated combination phase) of a butter

    • This discussion was modified 1 month ago by  ashley.
    PhilGeis replied 1 month ago 3 Members · 7 Replies
  • 7 Replies
  • Graillotion

    Member
    May 18, 2024 at 6:45 pm

    Aloe is water soluble, butters are not.

    I think we need a little more detail. How are you combining them?

    Aloe, as you know….is magnificent bug food.

    • This reply was modified 1 month ago by  Graillotion.
  • ashley

    Member
    May 18, 2024 at 7:52 pm

    I melt down the butters and waxes first (cocoa, shea, beeswax,) combined with my oils and cetearyl alcohol.After It cools and solidifies the following day I add aloe that has a preservative already in It and whip It together with a mixer. I have not had an issue with the formulation remaining solid, but should I be adding a preservative again to the final product after adding the aloe even though the aloe has a preservative in It.

    • PhilGeis

      Member
      May 19, 2024 at 7:53 am

      Is aloe the only source of water? Do you see this as oil in water or water in oil emulsion?

      Preservation of the finished product is your responsibility - not your supplier’s.

      If you determine no further preservation is needed, you’ll need to add the supplier’s preservative (system) top your ingredient label.’

      • ashley

        Member
        May 19, 2024 at 8:16 am

        Yes, aloe if the only source of water. I would call it a water in oil emulsion. I am aware that the preservative of the final product is my responsibility, hence why I’m asking for guidance on if I need another preservative after adding the aloe. I will ultimately have microbial and stability testing performed, but want to have the best odds of being successful with the initial formulation.

        • PhilGeis

          Member
          May 19, 2024 at 8:56 am

          What’s the preservative?

          • ashley

            Member
            May 19, 2024 at 9:00 am

            Phenoxyethanol

            • PhilGeis

              Member
              May 19, 2024 at 9:08 am

              how much?

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