Using this ability, Sadie and Dawn will both be capable of healing themselves using water. They won't be able heal others and they also won't be able to heal themselves in a dry environment. When water will touch a wound on their skin, the injury will begin healing immediately. The same will happen if water touches the skin when they are ill or has some interior injury or damage. However, the ability will not be able to heal the effects of age. It will never be possible for them to prevent the healing once they are in contact with water.