Emotional regulator

"For his own safety and for ours, John doesn't feel as we do. Hormonal pellets have suppressed his emotions."

— Doctor Catherine Halsey to HIGHCOM

The emotional suppression pellet was a hormonal pellet embedded in the lower spine of Spartan in order to suppress their emotions.

List of appearances

• Halo: The Television Series
  • Unbound (First mentioned)
  • Emergence (First appearance)
  • Homecoming