aesthetician

noun

1. Sometimes esthetician. a person who is versed in aesthetics, the branch of philosophy dealing with such notions as the beautiful, the ugly, the sublime, the comic, etc., as applicable to the fine arts, with a view to establishing the meaning and validity of critical judgments concerning works of art, and the principles underlying or justifying such judgments.
2. Usually esthetician. a person trained to administer facials, advise customers on makeup and the care of skin and hair, etc.: That new aesthetician gave me a great facial; I swear I look 10 years younger.Compare beautician(def 1).

noun

1. a student of aesthetics
2. another name for beauty therapist