Better yet, makeup products or ingredients—such as silicone—don’t compromise the blender’s biodegradability. “But we do recommend that you thoroughly clean your sponge at least once a week until the water runs clear prior to composting. We formulated and designed the product with the understanding that it would be used for makeup application,” Rybacek explains.
And if you accidentally throw it away, instead of composting? Rybacek says it’ll “degrade like any other food item you could otherwise compost, such as a banana peel in the garbage.” Landfill variability is a factor here, though: “We just can’t say for certain how long that would take due to differences in environmental factors between landfills, but definitely shorter than an average makeup sponge, which can sit in said landfill for a lifetime.”
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This article originally appeared on harpersbazaar.com