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  pH and viscosity changes in lotion- emulsifier choice?

  Posted by Biochemist on April 17, 2018 at 2:30 am

  Hi,
  Does anyone who has experience with Emulgade PL68/50 and Eumulgin SG in natural emulsions have the need to decrease the pH down from around 6.3-6.5 or is that an acceptable pH for a lotion (to also allow for pH drift)?  

  What are your acceptable pH levels for lotions?

  When reducing the pH to 5-5.5 I notice a dramatic increase in viscosity. I know salt thickens via the anionic and it seems decreasing pH does the same.

  Thanks!

  Biochemist replied 6 years, 1 month ago 1 Member · 0 Replies
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