Binding of Isaac: Rebirth Wiki
Binding of Isaac: Rebirth Wiki

Added in Afterbirth

Purity is an unlockable passive item.


  • Grants an aura around Isaac that grants a boost depending on the aura's color.
  • Taking damage causes the aura to disappear. When the next room is entered, the aura will reappear with a random color.


  • The tear delay boost can allow the player's tears to go over the normal maximum rate of fire.
  • It is especially difficult for The Lost The Lost to change auras. However, it is possible through the use of Added in Afterbirth †Dull Razor Dull Razor.


  • Added in RepentanceRock Bottom Rock Bottom: All four buffs can be obtained at once, and their effects are permanent.

In-game Footage[]


PC Removed in Repentance DKYP 0JFY (First floor Treasure Room)

PC Added in Repentance Normal and hard modes only 8ELN C4JS (Treasure Room adjacent to spawn)