Loofahs are great for exfoliating the skin, and though one of them is my regular shower companion, I had no idea what they are. I assumed the coarse tubes were either natural sponges from the sea, or ...

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NASHUA — Most people probably don’t spend much time considering the intricate process of growing a loofah sponge every time they use one in the shower. Many probably also have no idea that loofahs are ...