These Diane cleansing sponges are a 2-pack of facial sponges made from cellulose, a plant-derived material that's generally more biodegradable than a synthetic foam sponge.
Wet the sponge with warm water, optionally with a facial cleanser, and use in gentle circular motions to cleanse and lightly buff the skin — the sponge's edge can also help reach smaller areas like around the nose. Rinse thoroughly and let it air dry fully between uses.
We couldn't confirm whether this specific sponge is meant to be reused over time or replaced after a limited number of uses, so we'd rather leave that open than state a lifespan we can't back up.