The account was previously held by health and beauty agency Imagination PR.
Lexis will handle PR across the Aromatherapy Associates Group, which encompasses skin care and spa treatments for women as well as premium men’s grooming range, The Refinery.
Other responsibilities include providing strategic support across the global business and running the group’s UK press office and new product campaigns.
Catherine Miller, senior associate director is leading the account at Lexis, and will report to Leslie Davey, global marketing director at Aromatherapy Associates.
Davey said: "The Lexis team is in a strong position to promote our luxury credentials after demonstrating brand building expertise and presenting exciting innovative ideas."
Aromatherapy Associates is celebrating its 30th anniversary this year and there are plans to expand its luxury spa and retail business globally.