Natural Camouflage

From BioShock Wiki

Natural Camouflage is a physical tonic which renders the user invisible as long as they do not move or use weapons. The invisibility is nullified by moving, firing, operating the Research Camera or swinging the Wrench, but not looking around, looting any bodies or containers, Hacking or operating any machine. Enemies already aware of or hostile to the player will also nullify the invisibility effect.

[edit] Game Caption

Need some peace and quiet? Splice in Natural Camouflage, stop moving, and just fade away. Remember, not seeing is believing!

[edit] Location

Receive at research level two for Houdini Splicers.