Perfumed Body cream

Good evening to everyone I have a question to ask you. I formulated body creams based on cetaeryl glucoside, cetearyl alcohol and glyceryl stearate, thickened with polymer. As a preservative system I used phenoxyethanol and ethylhexylglycerin. the percentage of perfume is around 2%. After a few months, however, the emulsion loses consistency and becomes fluid. what may be due to the high percentage of perfume? what stability protocols usually follow for accelerated aging? thank you so much lisa

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