Bloodletting Essence

Bloodletting Essence was a Pre-Hardmode crafting material that dropped from Face Monsters and Herplings in The Crimson. Additionally, it was possible to obtain 5-8 Bloodletting Essences from Crimson Crates at a 25% drop chance.

It was used to craft the Blood Relic, Crimson Flask and Guide Voodoo Doll. It was also the Crimson counterpart to the Fetid Essence.

Trivia

 * 'Bloodletting' is a term used to describe the practice of withdrawing blood from a patient to prevent or cure illness and disease, a practice commonly performed by surgeons until the late 19th century.