• Formulating

  How to make a benzoyl peroxide wash more foaming/a better cleanser?

  Posted by Zink on December 18, 2019 at 10:42 am

  The general formula of a benzoyl peroxide wash base is:

  Surfactant(s): Cocamidopropyl Betaine or Sodium C14-16 Olefin Sulfonate and in some cases Sodium Lauryl Sulfate 
  Humectant: Glycerin
  Thickener: Carbomer (type A or C)
  Preservative: Varies
  pH buffer: Sodium Hydroxide and/or Citric Acid and/or Lactic/Glycolic Acid

  The general complaint about these formulas are that they are too lotion like/non foaming and non cleansing, how would you make the following formula more foaming/a better cleanser without making it even more drying?

  10% Benzoyl Peroxide
  10% Cocamidopropyl Betaine 
  5% Glycerin
  1% Carbomer (type?)
  1% Preservative
  x% Citric Acid to optimize pH/buffer BP

  Naturally it would have to go through stability testing both accelerated and RT so keep in mind the formula needs to stable enough to ideally see less than 10% BP degradation under the label value over 1 year (or more).

  Zink replied 4 years, 4 months ago 1 Member · 0 Replies

  • benzoyl-peroxide
  • wash
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