Board Thread:Questions and Answers/@comment-3244769-20140219204511/@comment-1268838-20140221145848

Kenpachi Hali wrote: i thought uharaha already explained that in order to suppress Hollowfication in a quincy, you need the polar a opposite force which is a shinigami as he did with masaki. ichigo is half shinigami due to his father therefore makes sense that his shinigami half is surprising the poisonous nature of hollowfication to quinces. I think you hit the nail on the head. Up until Ichigo obtained his own Shinigami powers, Isshin's connection the Hollow power that he inherited Masaki was still in effect.