It's also hypoallergenic, wicks away moisture and can degrade in only a few months if composted professionally with high temperatures and liquids.

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You get three earplugs made of soft, hypoallergenic silicone, with tiny filters to temper the sound, and a small cylindrical aluminum carrying case that fits on a key ring.

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Because it's hypoallergenic, it won't cause irritation.

WSJ: Better Beauty Sleep