Home Cosmetic Science Talk Formulating How can I improve?

  • chemicalmatt

    Member
    September 14, 2020 at 8:25 pm

    @filiz I suspect the propylene glycol/glycerin/cellulose blend is leaving a film behind making it feel “not dry.” Aluminum chlorohydrate will leave a white residue behind always unless you use the micronized grade. Also, with 18%EtOH and AlClHy why use a preservative? No need.

  • filiz

    Member
    September 15, 2020 at 5:30 am

    @chemicalmatt 

    This information is very valuable, thank you. For a long time I could not find an option to fix the formula. Do you have an alternative to the propylene glycol / glycerine / cellulose mix? Because there is a wet layer, you are right.

    I don’t know the difference of micronized class. I did some research, but I could not find satisfactory information…

  • filiz

    Member
    September 15, 2020 at 7:00 am

    @chemicalmatt

    ++ I am considering adding sodium stearate instead of propylene glycol, but I know that propylene glycol prevents white spots. I can also try changing the% value without changing the chemicals. I’m not sure if it’s the right approach.

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