Beaucage Salon & Spa - Member Directory Go back to directory. Add to Address Book. Beaucage Salon & Spa Beaucage Salon & Spa 71 Newbury Street, 2nd Floor Boston, MA 02116work Work Phone: 617-437-7171work Website: beaucage.com Biography Hair, skin and nail salon, specializing in corrective coloring. Located on Newbury Street.