Water-in-oil-in water emulsion

摘要

A multiple emulsion of the type W1/O/W2 is made by first preparing a primary emulsion W1/O using a silicone fluid as the oil phase (O), and an elastomeric silicone polyether as an emulsifier, for dispersing water phase W1 into oil phase (O). The primary emulsion W1/O is then added and dispersed into a final continuous water phase W2 to form a multiple emulsion W1/O/W2. The multiple emulsions are useful for treating the hair, the skin, or the underarm areas of the human body. Vitamins or drugs can be included in the oil phase (O) or in either aqueous phase W1 or W2 to enhance the benefits of the multiple emulsions in personal care applications.