• Formulating

  pH Stability: Expected Range of pH Variability in O/W Lotion using TEA

  Posted by spadirect on July 7, 2018 at 10:44 pm

  I am formulating a O/W body lotion with a target pH of 5.4 using triethanolamine (TEA) as the primary pH adjusting ingredient. 

  What range of percentages by weight of TEA would I likely need to add to the formulation to minimize the variability in pH that may naturally occur after testing and production? 

  Also, what is the approximate range of +/- variability of pH I can expect after producing the lotion once I find an optimal (or close to optimal) level of TEA content in the formulation?

  Any thoughts, comments and suggestions would be greatly appreciated.  Thanks.  

  belassi replied 6 years, 9 months ago 2 Members · 1 Reply
• 1 Reply

• 

  belassi

  Member

  July 7, 2018 at 11:20 pm

  If you fail to list the formula and its percentages you cannot expect to receive help from us.

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