Cosmetic Science Talk

Cosmetic Science discussion forum. For people who want for formulate cosmetics and get advice from other formulators around the world.
*** Click on one of the three Forum categories below to start a new discussion ***

Home Cosmetic Science Talk Formulating Salt Spray - Separation

  • Salt Spray - Separation

    Posted by Cosmetic_Chemist on January 20, 2022 at 9:35 pm


    I have recently tried formulating a salt spray but I noticed separation once it started cooling down. 

    The ingredients are:

    Cetrimonium Chloride
    Magnesium Sulfate - 3%
    Cetearyl Alcohol 
    Polysorbate 60
    Sodium Chloride - 0.2%
    Citric Acid 

    I mixed the salts in the water and then heated it to 75-80 deg C before adding
    Cetrimonium Chloride
    Magnesium Sulfate
    Cetearyl Alcohol 
    Polysorbate 60

    It was stable until I turned off the heat. White chunks started forming and floating on top. 

    Did I not heat it enough? Was there too much salt? 

    Any advice would be appreciated! 

    Thank you! 

    ketchito replied 1 year, 4 months ago 2 Members · 1 Reply
  • 1 Reply
  • ketchito

    January 21, 2022 at 12:38 pm

    @Cosmetic_Chemist Can you try one sample without salts? Some emulsions don’t tolerate high amounts of electrolytes.