![]() ![]() ![]() This means that they float within the interfaces between aqueous and oily phases and thus form links - the essential precondition for emulsifiers, and an emulsion is created. This property means that they are able to reduce the surface tension of water. Most emulsifiers can be considered “surface-active agents”. Moreover, their use is largely unregulated and considered an easy and inexpensive way of combining the oil and water phases of an emulsion. This is because emulsifiers are proving to cause a modification of the stratum corneum multilamellar lipid structure (Bilayers) and consequently the skin barrier defences. Many skin treatment therapists are also unaware that emulsifiers do not lose their emulsifying properties in the skin and have been found to be higher irritant properties than fragrance or preservatives. ![]() Have you had clients say to you, "I use my moisturiser daily but my skin still feels dry!" Or "I feel I need to re-apply my moisturiser twice a day because my skin always feels dry!" Or have you had a client use up all of her moisturisers in half the time she should? If so, these are indications of the "washout effect" of emulsifiers and how they can exacerbate fast trans-epidermal water loss and lipid dryness. It has been also published under the title "Why say no to Emulsifiers" in other digital and print media. This article was written in response to a number of requests for information explaining the purposes, properties and disadvantages of emulsifiers in skincare formulations. ![]()
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