Marvel: Aquatic Healing

Aquaria Neptunia (Namora)
If injured, Namora's body could heal damaged tissue faster and more extensively than an ordinary human or most Atlanteans. Namora's accelerated healing was at its peak while she was immersed in water and diminished the longer she was out of contact with water or if she was completely dry.

Namor McKenzie (Namor the Sub-Mariner)
If he was somehow injured, Namor's body would heal the damaged tissue faster and much more extensively than a human or most Atlanteans. Namor's accelerated healing is at its peak while he is immersed in water and diminishes the longer he is out of contact with water or if he is completely dry.