Sterimar baby nasal spray is 100% natural sea water nasal spray specifically designed to clear and unblock little noses. Sterimar Baby is a sea water based saline nasal spray that clears and unblocks little noses. Sea water mineral salts have been known for centuries for their therapeutic properties. Sterimar Baby is anti histamine free, steriod free and has no preservative or additives. It is extremely gentle and has no known side effects.