Yes he is. He said that his power (time/old age) is absolute and that his power can age everything and ultimately turn it to dust. But Hachigen noticed that Baraggan's power is not only absolute to his enemy's, but to himself as well. Baraggan used "Respira" on Hachi's arm and it started to age into a skeleton, but Hachi transported his arm into Baraggan's stomach, causing his power to be used on himself. Considering he totally disintegrated I would question why you are asking this question. In other words, yes.