How to stabilise

an O/W emulsion?

How to stabilise

an O/W emulsion?

40°C Stability

a) Oil separation

  • Gellyfying agent: add or increase (f.e. Xanthan Gum)
  • Emulsifier too low
  • Oil phase not ideal / suitable for emulsifier (check polarity)

40°C Stability

b) Water separation

  • Gellyfying agent: add, increase or decrease (f.e. Xanthan Gum)
  • Check the choice of your thickener – f.e. electrolyte stable?
  • Optimal ratio of emulsifier and co-emulsifier

6°C Stability

a) Water separation

  • ”Antifreeze”: increase polyols (f.e. Glycerin)

6°C Stability

b) Grainy / Granules / Particles

  • Reduce / optimise waxes and butter ratio as they can re-crystallize
  • Optimise emulsifier ratio or system

RAHN-Good-to-Know_How to stabilise an OW emulsion

PDF, 5 Pages, 1.1 MB

Contact

Sandra Gut

Sandra Gut

Portfolio & Application Laboratory Manager Cosmetics

RAHN (UK) Ltd.

sandra.gut@rahn-group.com