• Formulating

  Glyceryl Caprylate; as emulsifier or as oil in emulsion?

  Posted by Abdullah on February 3, 2021 at 4:13 pm

  Should i count glyceryl caprylate as part of emulsifier or as part of oil phase in o/w emulsions?

  Here is my simple lotion formula
  Petrolatum   %4
  Olive oil         %6
  EO                   %0.4
  Glycerin          %3
  Xanthan gum  %0.3
  Sodium phytate %0.1
  Caprylhydroxamic acid %0.15
  Glyceryl Caprylate %1
  Required hlb 7.26

  Polyglyceryl-4 Laurate and glyceryl oleate as emulsifiers

  Abdullah replied 3 years, 10 months ago 2 Members · 7 Replies

  • emulsion
  • glyceryl-caprylate
  • hlb
  • lotion
• 7 Replies

• 

  Pharma

  Member

  February 3, 2021 at 8:29 pm

  Glyceryl caprylate at 1% could be a co-emulsifier and/or a preservative. Given that there are emulsifiers included but the sole preservative is caprylhydroxamic acid is a strong indicator that it’s main purpose in this product is as a preservative and hence should be added to the water phase.

• 

  Abdullah

  Member

  February 4, 2021 at 2:31 am

  @Pharma thanks 
  If i use glyceryl caprylate as co-emulsifier with Polyglyceryl-4 Laurate, would that decrease its effectiveness as preservative or not? 

• 

  Pharma

  Member

  February 4, 2021 at 7:28 pm

  It would, unfortunately.

• 

  Abdullah

  Member

  February 5, 2021 at 2:05 am

  @Pharma so what is the best way to add it to function completely as preservative? 
  As it is not water soluble to be added to water phase before emulsion is made.

• 

  Pharma

  Member

  February 5, 2021 at 7:34 pm

  It’s dispersible in hot water .

• 

  Abdullah

  Member

  February 6, 2021 at 8:52 am

  @Pharma 
  That is cool

• 

  Abdullah

  Member

  February 8, 2021 at 11:12 am

  @Pharma 
  How to add glyceryl caprylate to function as preservative in cold process emulsion? 
  Temperature less than or around 40°c

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