If you're looking for synonyms for "salon de beaute", there are a number of options to choose from. One popular choice is "beauty salon", which refers to a space that specializes in providing different beauty treatments, such as hair styling, makeup application, and nail care. Another option is "cosmetology salon", which typically focuses on hair, skin, and nail services and may also offer courses in cosmetology. Other terms that may be used include "spa", which can refer to a range of wellness and beauty-related services, and "parlor", which is a traditional term that may be used to describe a space that offers various beauty treatments.