润滑皮肤外，亦是乳化剂，适合作为熟龄肌肤滋润使用，属于会分解的游离脂肪酸。能协助建构皮脂膜，强化肌肤保溼能力

cholesterol is moisturizer and emulsifier, used to keep skin hydrating , and helps to build sebum membrane