Band-Aid Brand Advanced Healing Bandages A breakthrough in premium wound protection, Band-Aid Brand Advanced Healing Bandages feature Compeed Moisture Seal Technology to promote fast natural healing. Sterile strips act in place of a scab to seal in the body's own natural healing fluids and create a white gel cushion for extra protection. They seal out the water, dirt and germs that can cause infection, but maintain natural moisture level by allowing excess moisture to evaporate. Equipped with a strong adhesive, Advanced Healing Bandages work best when left on for several days.