ecobiology How does the skin fulfil its “barrier function”? How do you select your ingredients? Do you test your products on animals? What is a micelle? Does micellar water need to be rinsed off? Where are your products made? Are your formulations biodegradable? Do you measure the impact of your sun care products on coral? Why do you use plastic packaging? What does INCI mean? What does “galenic” mean? What is an emulsion?

What is an emulsion?

A light or airy fluid, a thick cream, rich balm, or even an occlusive ointment... Did you know? These are all emulsions! An emulsion is just the technical term for a milk or cream. An emulsion is an even mixture of two parts that do not mix together, like oil and water. One of the parts is dispersed in the other in the form of tiny microscopic droplets. The mixture remains stable thanks to a third ingredient, known as an emulsifier that is able to stabilize the interface between the two phases. Emulsions can also contain gelling agents, which increase the emulsion’s viscosity for more thickness, without increasing the fat content. Emulsions can be moisturising or nourishing, depending on their fat content. The best-known emulsion in everyday life is probably... mayonnaise! ?

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