Black Blood is a Potion in The Witcher 3: Wild Hunt. There are Standard, Enhanced and Superior versions of this potion.
- Effect: Witcher's blood injures Vampires and Necrophages when they wound him.
- Toxicity: 15
- Duration: 30s
- Superior Black Blood will create an aura around Geralt that damages Vampires and Necrophages.
Sold by a halfling herbalist in Novigrad. South of Hierarch Square, and across the canal. Northwest of the Gate of the Hierarch.