Board Thread:Naruto Discussions/@comment-32617252-20180630010918/@comment-1512913-20180701155959

We seem to have different levels of chakra:
 * chakra that doesn't affect the host, besides increasing their power and reserves (basic chakra transfer)
 * chakra that temporarily affects the host (jinchuuriki transformation)
 * chakra that permanently affects the host (chakra fruit, giving Rinne Sharingan etc.)

None of this has ever been explained, shrugs.