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  Cream cleanser melts @ 40C in Incubator Stability Test Question

  Posted by firstlight on January 18, 2020 at 1:19 am

  Hello,

  I made a cream cleanser with 

  sodium cocoyl isethionate 20%

  stearic acid: 5%

  Glycerin 5%

  Aculyn 28 Polymer (acrylates/beheneth-25 methacrylate copolymer). 4%

  perservative.

  Its pretty similar to a formula by Lubrizol (mild pearilized foaming facial cream).

  It seems pretty stable. When I put it in the incubator at 40% it melts and foams up a bit (and stays that way). When I remove it from the incubator, it returns to the proper consistency. It seems to start melting at 30C. Would this still be considered shelf stable? Does this happen to a lot of cream cleansers? Im just a hobbyist so I have no clue.

  Thanks for reading.

  firstlight replied 4 years, 10 months ago 1 Member · 0 Replies
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