Home Cosmetic Science Talk Formulating HLB of dimethicone 5 or 9

  • pharma

    Member
    January 20, 2021 at 7:39 pm

    Dimethicone doesn’t have a HLB, it has a required HLB for w/si and a different one for si/w. In addition to that, dimethicone isn’t one defined chemical molecule but can differ in length and even branching and that greatly affects rHLB. Both values could hence be true or false ;) .

  • abdullah

    Member
    January 22, 2021 at 6:33 am

    @Pharma thanks 
    I have purchased a few kgs of 5 cst dimethicone to reduce tackiness of this o/w lotion. I want to add it in %1 or 2. Here are the ingredients 

    Olive oil    %6 
    Petrolatum   %4 

    Emulsifiers 
    Polyglyceryl 4 Laurate
    Glyceryl Caprylate
    Glyceryl oleate

    Water and glycerin and xanthan gum and caprylhydroxamic acid 

    The required HLB for olive oil and petrolatum is 7. If i add dimethicone 5cst %2, should I acount it as 5 or 9 for better stability? 

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