Isma's Tear is an Ability in Hollow Knight. It allows swimming in acid without taking damage.


Albeit very useful, Isma's Tear is not necessary to complete the game. Obtaining it allows access to the following:

It is also useful while exploring Fog Canyon and fighting Uumuu.

How to Acquire

Located in Isma's Grove in the Royal Waterways. Requires Crystal Heart and beating Dung Defender in order to access this area.


  • In the game files, this ability is referred to as "Acid Armour".
  • Dung Defender refers to it as "Isma's Blessing".[1]


  1. Dung Defender:"She's a great judge of character, so if she gave you her blessing you must be something special indeed. I'm barely worthy to be in your presence!"
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