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Ultra low viscosity emulsion with high tolerance for electrolytes

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Among many useful functions of modern skin-care products, moisturizing effect is the most fundamental and important. The ‘moisture-balance concept’ which emphasizes the balance of lipid, Natural Moisturizing Factors (NMFs) and water is a key to improving skin condition. Many skin-care products incorporating lipid and NMF have appeared on the market. However, since NMFs are electrolytes, their presence tends to cause lipid droplets to aggregate and seriously compromise the emulsion stability. Consequently, it has been practically impossible to incorporate both NMFs and lipids into ultra low viscosity products such as toning lotions, which limits their applications. We investigated certain biogenic materials capable of emulsifying lipid in vivo in the presence of electrolytes, including lecithins which have a high affinity for human skin. Our results showed that lysolecithin has high tolerance for electrolytes and high affinity for skin. We developed a novel emulsification technology using lysolecithin. Moreover, we successfully prepared a toning lotion, ‘Biomimetic Moisturizer,’ incorporating both lipids and NMFs, using this technology, and demonstrated its high moisturizing effect and efficacy in improving skin condition.
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Document Type: Abstract

Publication date: October 1, 2010

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