Emulsions are of great use in cosmetic formulations due to their stability. The aim of this\nwork was to develop and assess organoleptic, physicochemical, and microscopic properties of four\nauto-emulsifiable oil-in-water formulations. Such formulations were developed containing 4.0%\ncetearyl alcohol, dicetyl phosphate, and ceteth-10 phosphate (Formulation A), nano-actives obtained\nfrom safflower, coconut, and clove oils (Formulation B); a mixture of glycolic extracts from\nCentella asiatica leaves, Aesculus hippocastanum seeds, and Hamamelis virginiana leaves (Formulation C);\nassociation between the nano-actives and glycolic extracts described above (Formulation D).\nThe formulations were trialed for 90 days under the normal stability test. The developed\nformulations were considered all stable and homogeneous, with liquid crystals possibly being formed.\nOrganoleptic parameters and pH of Formulations A and B remained unchanged, but the color of\nFormulations C and D changed due to the natural color of the glycolic extracts used. It can be\nconcluded that the formation of liquid crystals increased the stability of the formulations, and future\ntests should be carried out in order to assess the rheological properties and hydration potential of the\ndeveloped formulations.
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