Home Cosmetic Science Talk Formulating General Science PEG-150 Distearate in shampoo/liquid soap formulations

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  • PEG-150 Distearate in shampoo/liquid soap formulations

    Posted by tecnico3vinia on June 29, 2021 at 5:19 pm
    Hey,
    Sometimes I use PEG-150 distearate as a thickener in some formulations, but I notice there is no increase in the viscosity (even using high concentrations). I noticed that this happens when I use some non-ionic (e.g. decyl glucoside) and non-sulfated anionic surfactants (e.g. disodium cocoyl glutamate).
    Does anyone noticed it too? Why does this happen?
    Thanks in advance 🙂
    chemicalmatt replied 2 years, 9 months ago 2 Members · 1 Reply
  • 1 Reply
  • chemicalmatt

    Member
    July 1, 2021 at 3:42 pm

    @tecnico3vinia, that thickener is nearly exclusive for fatty alkyl ether sulfates and sulfonates. PEG-150DS does not associate well with the other surfactant classes, as you have noticed. Same holds true with NaCl: everyone thinks it thickens everything in detergent surfactant chemistry. Not happening.

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