Strength of a Hundred Seal

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Strength of a Hundred Seal [1][2]
Tsunade decides to head out
Kanji 百豪の印
Rōmaji Byakugō no In
Literal English Strength of a Hundred Seal
Viz manga Hyakugou Seal
English TV Reserve Seal
Other Yin Seal (陰封印, Infūin), 100 Healings Mark
Manga Chapter #153
Anime Naruto Episode #88
Movie Naruto Shippūden the Movie
Game Naruto: Ultimate Ninja 2
OVA Finally a clash! Jōnin vs. Genin!! Indiscriminate Grand Melee Tournament Meeting!!
Appears in Anime, Manga, Game and Movie
Classification Fūinjutsu
Rank S-rank
Class Supplementary
Derived jutsu
Katsuyu: Immense Network Healing


A seal which is reputed to be the pinnacle of chakra control.[1] By storing a vast amounts of chakra over an extended period of time into a specific point on their body — usually the forehead — the user creates this seal, which manifests in the form of a rhombus-like marking. Once the seal is formed, the user's already impressive chakra control allows them to perform techniques without any wasted energy.[3] When released, the seal will either spread across the user's face or wrap around their entire body. The stored chakra is then released into their body, greatly amplifying the power of their techniques.

By releasing the power of their seals, both Tsunade and Sakura were able to combine its power with Creation Rebirth and gain them access to the Ninja Art Creation Rebirth — Strength of a Hundred Technique. Their seals are also linked to Katsuyu, and as the slug noted, it too is supported by the seal.[4]


  • When written as '白毫', byakugō means 'Ūrṇā' (Literally meaning: Fine White Hair), 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.
  • Tsunade also uses a portion of the seal's chakra to maintain her youthful appearance.[3]
  • In the fourth databook, it was stated that Mito Uzumaki also had this seal, which manifested as a diamond on her forehead.[5]
  • Sakura spent three years storing chakra to form the seal, something Tsunade's first disciple, Shizune, noted that even she was unable to achieve due to the level of chakra control required.[6]
  • In the chapters published in Shōnen Jump, the seal was initially identified as "White Strength Seal" (白豪の印, Byakugō no In). It was corrected in the tankōbon version.


  1. 1.0 1.1 Second Databook, page 201
  2. Chapter 632, page 18
  3. 3.0 3.1 Chapter 632, pages 15-18
  4. Chapter 635, pages 4-5
  5. Fourth Databook, page 36
  6. Chapter 632, pages 12-15

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