I'm playing the Witcher 3. This is my 1st playthrough. I've finished all of the main and side quests in White Orchard and Velen. Now, I'm doing Novigrad quests.
Where can I find the missing oil recipes? I have searched in herbalist shops, and I couldn't find any of the oils that I'm missing. For example, I couldn't find the Widow oil. I do have many oils, but I'm missing a lot of the main monsters oils, too.