Cold compresses have long been used for temporary swelling and puffiness because cold causes blood vessels near the skin's surface to constrict. This silicone mold applies that same basic principle to the face: fill it with water, freeze it, and glide it over your skin for a few minutes. As the area warms back up afterward, blood flow returns, which is often what gives skin a brief flushed or refreshed look right after use. It's a reusable alternative to holding loose ice cubes or a bag of frozen peas against your face — the silicone shape is just easier to hold and move around your features. The effect itself is short-lived, so think of it as a quick way to address morning puffiness rather than a lasting skincare treatment.