A younger sibling of Boylston Street’s Balans Wellness Studio, Boston’s only 100 percent organic spa has quickly become a haven for label readers and nature seekers, offering treatments as pure as its crisp white interior. Staff employ the plant-based line Maria Åkerberg Deepskin Organics for their beloved body wraps, massages and makeup. And a visit isn’t complete without checking out flotation therapy in the private yet spacious sensory deprivation tank, where you can listen to soothing music or simply soak in the silence.