Hall of Infinite Doors

You decide to rip through the orange door. You go over to it and it is thicker than the walls, more like construction paper. It's a little harder to get through, but you finally do. Behind the door is nothing but a white room with a table in the center. On the table is a syringe of blue liquid and a syringe of green liquid. You go to the walls and they are actual walls. You look back towards the door and it is gone. "That's fucking weird!" you say aloud. You have nothing to lose now, which syringe?