Forktail mutagen is an alchemy ingredient in The Witcher 3: Wild Hunt that is needed to craft Forktail decoction.
They act like lesser blue mutagens when placed in the diamond-shaped slots in the character panel.
Notes
- In an undocumented change for error, all mutagen icons were changed. However, there was still a bug for those on Steam and Origin that didn't reflect this and was later fixed in error. Despite this, some may still see the original icons instead, even with a fully patched game.
- There is a forktail guarding the ruined fort on the northern end of Mudplough, which has a good chance to drop this mutagen.