Hotels generate a lot of waste, especially by offering small bottles of shower gel and soaps that are never really finished. Ephemeral Soap is a complimentary set for hotels including several shampoos, body and hand soaps. What makes them so special? They only last as long as a shower and a hand wash. The ingredients are whipped to incorporate air. When heated, these small air bubbles expand, and the soap becomes six times larger, just like popcorn, with a foamy texture. It is then covered by a thin protective layer of solid soap to avoid packaging. The set also includes reusable bamboo boxes to distribute the soaps in every room.