Super Saiyan Blue is a powerful transformation in the Dragon Ball series, combining the strength of Super Saiyan God with the mastery of Super Saiyan. This form is characterized by blue hair and a blue aura, signifying a higher level of energy control and combat ability. To achieve Super Saiyan Blue, a Saiyan must first attain Super Saiyan God status and then further refine their power. This transformation allows the user to access godly ki, making them faster and stronger than previous forms, and is often used by characters like Goku and Vegeta in their battles.