Denjiha: Jikohozon

Without medical-nin knowledge the user can heal a wound of his own body. In exchange of a little amount of chakra, it passively rejuvenated cells which makes the user look younger.

Limitations
Both effects can not be performed at the same time which means the user either use the passive or heals himself. This technique can only be performed on oneself.

Reference
The info in this article belongs Misfitts, you are not allowed to use it in any form.