The comparison of the results of microscopic, conductimetric and rheologic analyses carried out on the same triple W/O/W emulsion, immediately following its manufacture and 10 years later, indicates the remarkable stability of such system. This stability illustrates the great potential of this formula in the protection of unstable ingredients, with regard to external stress, when encapsulated with a high yield.
The appearance of new natural trends due to discovery of many curses caused by natural colorants the short one and in the long run has promoted the substitution, despite slow, of the artificial colorants in the market for the natural ones. However there are many impediments in this substitution since the natural colorants most of the time are unstable to the light, to the heat, to pH, having necessity of deepened studies to become them steady.
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