A syringe with a purple substance inside.


Isaac gets tumors/growths around his face. Increases Damage by 1 and Speed by 0.4.

Related Achievements

"The Common Cold" - Collect two of the following items in one playthrough: Roid Rage, The Virus, or Growth Hormones.


  • Growth Hormones' visual effects are not visible on Eve at the beginning of every room, but they get active when she gets hit.

Start a Discussion Discussions about Growth Hormones

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