Stella Gray, “spa elder” at Half Moon resort’s Fern Tree, in Jamaica, picks the herbs for your bath soak ($55), scrub ($130), or massage oil ($115) from her garden; you’ll walk away with a sample—and the recipe.
At the new apothecary in Hawaii’s Four Seasons Resort Hualalai Spa, a spa concierge mixes indigenous ingredients (exfoliating sea salts; purifying volcanic clay) to personalize your scrub or wrap (from $170).
For the aromatherapy massage (from $135) at the sleek new Sè Spa, in the Sè San Diego Hotel, therapists blend a range of essential oils to relieve your emotional tensions and give you a three-ounce bottle to take with you.
Before he became creative director at Shibui Spa, in New York’s Greenwich Hotel, Thuyen Nguyen developed a bold-face following for his custom-made beauty products; you can leave with the mask he creates for your facial ($325).
View our full list of the World’s Best Spas 2009.