Forum Replies Created

  • mindyourmolecules

    Member
    May 11, 2023 at 9:51 am in reply to: Why is Jojoba compared to human sebum?

    I’ve always assumed it’s equated to sebum due to being a wax ester, which is part of sebum, so it’s unique compared to other emollients in that regard. But as sebum is a complex mixture, and mostly triglycerides, it’s definitely an over simplified (and incorrect) comparison.

  • mindyourmolecules

    Member
    March 28, 2023 at 9:43 am in reply to: Adhesion issues in powder makeup

    Can you provide your ingredient list? Hard to know what could be the issue without that information!

  • mindyourmolecules

    Member
    May 26, 2022 at 2:10 pm in reply to: Reduce oil syneresis without waxes

    I had a project years ago where I was trying to gel squalane using silica dimethyl silylate, and it does thicken, but I was never able to achieve stability, even with very high levels of the gellant.  If you were able to get the glycerin into formulation, you could try swapping it out for Dermanet Squalane - the squalane is ‘encapsulated’ inside of glycerin.  If I recall, it’s only about 1% squalane, so you wouldn’t be able to incorporate a high amount, but if it’s mainly for the marketing story it could be worth a try!  

  • mindyourmolecules

    Member
    May 16, 2023 at 11:55 am in reply to: Coptis Alternative

    Have you used them before? Curious to hear how they compare!

  • mindyourmolecules

    Member
    March 29, 2023 at 11:18 am in reply to: Preservative % for Small Water Phase

    Oh sorry yes - the aq. phase is 57.1% water, 42.9% glycerin.

  • mindyourmolecules

    Member
    March 29, 2023 at 11:11 am in reply to: Adhesion issues in powder makeup

    I’ve never used kaolin as a base for powder foundation, but I’ve used sericite and talc with no additives needed for adhesion. How can you tell it’s an adhesion issue? TiO2 provides opacity for pigments, creating coverage vs. just tinting the skin with the color of the pigments, so I’m wondering if it’s a coverage issue.

  • mindyourmolecules

    Member
    March 29, 2023 at 11:04 am in reply to: Preservative % for Small Water Phase

    4% Water, 3% Glycerin

  • mindyourmolecules

    Member
    March 29, 2023 at 8:34 am in reply to: Preservative % for Small Water Phase

    I’m assuming the ratio of glycerin to water is also lowering the water activity, but since it’s going to be in contact with moisture on the lips, I’d like to play it safe. I don’t want to incorporate too much preservative though as it will change the texture of the formulation, so I’d like to go as low as possible while maintaining preservation.

  • mindyourmolecules

    Member
    March 29, 2023 at 8:26 am in reply to: Preservative % for Small Water Phase

    It’s an anhydrous base with the water/glycerin incorporated using Polyglyceryl-2 Diisostearate.