editStrength of a Hundred Seal Camera font awesome[1][2]
Tsunade decides to head out
Kanji 百豪の印
Rōmaji Byakugō no In
Viz print media Hyakugou Seal
English anime Reserve Seal
Alternative names Yin Seal (陰封印, Infūin), Hundred Healings Mark
Manga Volume #17, Naruto Chapter #153
Anime Naruto Episode #88
Novel Kakashi Hiden: Lightning in the Icy Sky
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, Novel, Game, Movie
Classification Fūinjutsu
Rank S-rank
Class Supplementary
Derived jutsu

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. The seal will permanently remain in the centre of the user's forehead, presumably so that the user can keep on benefiting from its effects.

This seal is also symbiotically linked to the summon Katsuyu. That is to say: the power of the techniques used by Katsuyu, is directly proportional to the reserves of the seal.[4] By releasing the power of their seals, Tsunade and Sakura were able to combine its power with the Creation Rebirth technique in order to gain access to the Ninja Art Creation Rebirth — Strength of a Hundred Technique.


  • 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.
  • Mito Uzumaki had a similar marking on her forehead. While the Strength of a Hundred Seal seems to be modelled after this in terms of appearance, it is currently unknown if hers is also a Strength of a Hundred Seal.
  • 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.
  • Tsunade also uses a portion of the seal's chakra to maintain her youthful appearance.[3]
  • 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.[5]
    • In the anime, Tsunade stated that because of the delicate nature of building up chakra required for this technique, a person is substantially drained of normal reserves of chakra, making it dangerous for one to perform surgery or battle. Sakura, however, found a way to divert a small portion of that built-up chakra back into her normal reserves.[6]


  1. 1.0 1.1 Second Databook, page 201
  2. Naruto chapter 632, page 18
  3. 3.0 3.1 Naruto chapter 632, pages 15-18
  4. Naruto chapter 635, pages 4-5
  5. Naruto chapter 632, pages 12-15
  6. Naruto: Shippūden episode 408

Start a Discussion Discussions about Strength of a Hundred Seal

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