Loofah gourds are a natural, biodegradable option for exfoliating, and they can be composted. The best loofah for exfoliating will break down over time in your compost bin. However, synthetic loofahs, made from artificial materials, cannot be recycled and should be disposed of in the regular trash. When choosing a soft loofah, consider sustainability and opt for natural options for an eco-friendly exfoliating experience.