Multi-layer cosmetic

Abstract

The present invention addresses the problem of providing a multi-layer cosmetic having high emulsion particle stability, particularly high temperature stability and freezing stability, and rapid separation between an emulsion layer and a water layer. The multilayer cosmetic contains: (A) one or more non-ionic surfactants having a weighted average of HLB values of 8.5 or more; (B) an ionic surfactant; (C) one or more cellulose derivatives selected from the group consisting of alkyl celluloses and hydroxyalkyl celluloses; (D) an oily component; and (E) water.

Description

technical field [0001] The present invention relates to a liquid multilayer cosmetic including an emulsified layer. Background technique [0002] Multilayer cosmetics are liquid cosmetics composed of two or more layers such as oil layer-water layer or water layer-powder layer. Since oil components can also be added, they can be used to give a single layer that cannot be obtained. The merit such as various functions such as a feeling, the washing effect. However, in the case of a multilayered cosmetic consisting of an oil layer and a water layer, all layers are almost transparent in appearance, and sometimes it is difficult to recognize the multilayered cosmetic at first glance. [0003] Therefore, it has been proposed to emulsify the oil to form emulsified particles to become cloudy, and to separate them into a cloudy emulsion layer and a transparent water layer in which the oil is directly kept in the emulsified state, thereby clearly defining the multi-layer type. Cosmet...

AI Technical Summary

Problems solved by technology

However, in the case of a multi-layer cosmetic consisting of an oil layer-water layer, the appearance of any layer is almost transparent, and sometimes it is difficult to recognize it as a multi-layer cosmetic at first glance.

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