It's not an emulsifier and has a HLB requirement of about 15. However, it is useful as 'co-emulsifier'. Alone (and also in conjunction with emulsifiers), it forms liquid crystal networks which can stabilise emulsions giving cetyl alcohol the apparent ability to actually emulsify the two phases (though the effect is closer to that of a polymeric stabiliser).
Grazie 1000 🙏
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