Board Thread:Questions and Answers/@comment-24830713-20141224190027/@comment-24152851-20150124130018

The Omnitrix probably damaged Albedo's actual DNA, as well as every alien form he can turn into, which is why even his Galvan form is negative. He could lock the Ultimatrix for the Galvan form like Ben did for Bullfrag and Gravattack. I'm not sure if he can restore his default DNA back to Galvan though.