Home Cosmetic Science Talk Formulating Am using hec as a thickiner for shower gel

  • ngarayeva001

    June 28, 2019 at 5:14 pm

    Probably because you have too much in your formula already and adding more brings the salt curve down. Some surfactants have salts in them already but it’s impossible to say anything without seeing what’s in your formula.

  • em88

    July 2, 2019 at 10:16 am

    Maybe NaCl is not the right ingredient to increase viscosity. Not all sufactants react the same when salt is added. 

  • chemicalmatt

    July 3, 2019 at 4:15 pm

    Hydroxyethylcellulose will not support monovalent electroltyes (e.g. SLS, ALS) or amphiphiles (amphoterics) in high amounts well at all. That is why your viscosity was unstable even before you added NaCl. Try methylcellulose (Methocel from Dow) instead, you’ll feel much better.  

  • Quimico

    July 4, 2019 at 2:03 pm

    HEC Is not compatible with some surfactants, use 20% salt solution,
    It is uncommon to have thickening problem on shower gel as it has high active matter on the formulation.

  • Quimico

    July 4, 2019 at 2:06 pm

    Base formulation guide
    1. SLES 70%.  15
    2. DEA      ……….2
    3. BETAINE.     …7

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