When you drink (inhale) this potion, you gain the ability to use your action to make a breath attack up to 3 times in the next 10 minutes. When using a breath attack, each creature in a 15-foot cone must make a DC 13 Dexterity saving throw. A creature takes 3d6 radiant damage and if invisible becomes visible on a failed save, or half as much damage on a successful one. This breath attack affects creatures on both the Ethereal and Material Plane.
If you teleport (such as through the effects of Misty Step, Teleportation, or Dimension Door) or enter another plane (such as through the effects of Blink or Plane Shift) while under the effects of this potion, you must make a DC 13 Constitution saving throw, taking 2d6 radiant damage plus 3d6 radiant damage per remaining breath attack on a failed save and half as much damage on a successful one. You are no longer under the effects of this potion.
If this potion is teleported, it explodes for 10d6 radiant damage in a 10 foot radius at each end of the teleport, DC 13 Dexterity saving throw for half damage.
The party made a really nice haul at the Odsev Mirror Factory, including a dispenser of Aether which accounts for many of these potions, if they want to use it that way.