Manuscript page: Enhanced Petri's Philter

Manuscript page: Enhanced Petri's Philter is an alchemy formula in that is needed to craft Enhanced Petri's Philter.
It's a possible spawn at a random diagram location starting at level 12, or purchased from the following merchants:
* Herbalist in a shop in Glory Lane
* Herbalist in the Druids' Camp
* Herbalist at the Ruined Inn
* All alchemists in Toussaint 
ru:Рецепт: Улучшенное Зелье Петри
Category:The Witcher 3 alchemy formulae