Torn-out page: Werewolf decoction is an alchemy formula in The Witcher 3: Wild Hunt that is needed to craft werewolf decoction.
It can be obtained by reading the book In Beast's Clothing, received as reward from the Loan Shark for letting Morkvarg live during In Wolf's Clothing, found at random diagram locations, or purchased from the following merchants:
- Herbalist in the Druids' Camp
- Herbalist at the Ruined Inn
- Yolar at Gedyneith
- All herbalists in Toussaint except Pinastri
