Board Thread:Naruto Discussions/@comment-30168130-20170420220200/@comment-734582-20170422202404

I think both are the exact same thing: Using extreme levels of chakra to force the body to create new cells. It's also how the Byakugo works. It's just that for Hashirama and the Biju, these levels of chakra are natural whereas the Strength of a Hundred seal does this artificially.