||Increases Sign intensity.
Petri's Philter is a Potion in The Witcher 3: Wild Hunt. There are Standard, Enhanced and Superior versions of this potion.
- Location: Herbalist's Hut in Novigrad (Northeast of Oxenfurt)
- Price: 25 Crowns
- Required Alchemy Level: ?
- Effect: Increases Sign intensity.
- Toxicity: 25
- Duration: 30s
- Alcohol Used to Refill: ?