• Formulating

  Preservative for Poloxamer solution

  Posted by genevachen on October 12, 2018 at 11:23 pm

  I am making a gel with hydrogen peroxide (2%) and 20% Poloxamer. I am looking for preservatives to suppress mold and discoloration.
  I have tried parabens and sorbic acid. With time, the gel grows mold and discolors.

  Doreen replied 5 years, 7 months ago 2 Members · 1 Reply
• 1 Reply

• 

  Doreen

  Member

  October 13, 2018 at 4:47 am

  It’s hard to tell why there’s mold and discoloration without knowing more details, like the other ingredients used and how much, % parabens, % sorbic acid, pH, type of packaging etc.
  I also think poloxamers interact with parabens but I’m not sure.

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