Soft track lighting blooms across the exposed brick, potted plants, and floor-to-ceiling artwork at La Peau Day Spa. The scents of sea mud, milk, and honey fill 15 private treatment rooms in the 3,000-square-foot facility. Aestheticians wield those and other paraben-free, natural ingredients beneath shelves of Dermalogica and G.M. Collin elixirs. Green-tea baths soak feet in antioxidants, releasing steam that hints at crushed herbs, open fields, and the only food teddy bears know how to prepare.