User blog comment:Marco the Marine Admiral/Will Laxus and Gajeel's hair color change when dragon force is activated?/@comment-26042226-20150828065527

I thought second-gen Dragon Slayers (Laxus & Cobra) couldn't use Dragon Force because they had a Dragon Lacrima implanted into their bodies instead of being raised/trained by Dragons, like the other 5.

But I think for Gajeel, either his hair will stay the same or it will go a silver-ish color