What material is this sponge made of? Is it suitable for sensitive skin?

Our acne patches are infused with salicylic acid to target blemishes and tea tree oil to soothe skin. This dual-action formula effectively helps fight acne.

Dry use: Dip directly into cushion or pressed powder, pat gently onto skin for a sheer, long-lasting finish.
Wet use: Soak and squeeze out excess water, spread base makeup evenly over the face, then blend by patting with the puff for a more flawless, natural look.