Superadine Labs appear in some missions. They are usually an object that must be destroyed as part of the mission. While near a Superadine Lab, you will be subject to:
When destroyed, Superadine Labs produce a small PBAoE explosion (Lethal, Fire, and Knockback.)
In the presence of this lab, you can't help inhaling a whiff or two of Superadine. The substance will buff your Endurance until the lab is destroyed.