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  The Best Stability Test for Viscosity

  Posted by Abbass_1 on November 26, 2019 at 8:47 am

  Hi, all.

  I want to establish the viscosity stability of a lotion and a cream, specifically to observe whether it will last for 18 months without separation. Is the centrifugation method practically accurate? Also, if a previous formulation with a lower emulsifying wax content lasted for , say 12 months, does increasing the amount (and type) of emulsifier alone guarantee a higher shelf-life?

  Also, if cetearyl alcohol is not an emulsifier, why is it being used at a very high % in lanette wax with much success?

  Has anyone succeeded in making a lotion without a carbomer, or without a neutralized carbomer? How did you do it?

  Thank you in advance for your input.

  Abbass_1 replied 4 years, 12 months ago 1 Member · 0 Replies

  • centrifugation-lotions
  • emulsifier
  • emulsion-problem
  • stability testing
  • viscosity-drop
• 0 Replies

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