Board Thread:Theories and Speculation/@comment-30426414-20161218074441/@comment-734582-20161220114402

Lorenzo VonMT wrote: Don't make me scan through the whole part 1 manga to prove this to you 😞 thats cruel man. Eh i won't ask you to. I can live with contradictions, the amount of retcons are just too high. I do think there's a similarity with the Transformation jutsu, but i think Tsunade's method is based more upon the Slugs and their soft tissue manipulation (e.g. fissioning and reforming their body) rather than some form of... i don't know, was it ever explained what the basis for a transformation jutsu is? I guess it's a form of Genjutsu?.

EDIT: in case you wanted to know, 632 p18 Sakura says she doesn't need the seal to look younger, implying it's more of a Creation Rebirth technique than a transformation jutsu.