Strength of a Hundred Seal

A seal developed by Tsunade as the pinnacle of chakra control. By storing chakra over a period of time, the user creates a seal on their forehead which keeps the chakra undisturbed for future use. Once the seal is formed, the users already impressive chakra control allows them greater physical strength or preform techniques without any wasted stamina or chakra. When released, the stored chakra goes back into the body, greatly increasing chakra flow.

Trivia

 * When written as '白毫', byakugō means, which is a white swirl of fine hair on the forehead of the Buddha, represented in art by a spiral or a dot, or even a gem or pearl. It represents the third eye which allows one to see past the mundane world and into the divine world.
 * It is unknown if the mark on Mito Uzumaki's forehead is related to the Yin Seal.
 * Sakura Haruno mastered the seal and spent three years storing chakra to form the seal, something Tsunade's first disciple Shizune was unable to do.