Question.

[Kaden]

Originally posted by Kakarot
Rad's hair wouldn't grow because the whol growing of hair in Goku's case was probably his body adding new mass to contain the enormas amount of energy that Goku was out putting.

According to that, though, Rad's hair would still grow. His body is accustomed to his current mass, so he would need to add on to it for the same reason Goku did.