The Witcher 3: Wild Hunt Location Guide On How To Find Missing Bomb Formula. If you are searching for a bomb formula in The Witcher 3: Wild Hunt, you should go to a herbalist. The best location is the “Herbalist’s Hut” fast travel point in the south-east of Novigrad. Ask the dwarf herbalist to show you what he’s got, look at the manuscript pages in his inventory described as “[Magic Item; Alchemy Formula] Formula for crafting a bomb that explodes on impact.”
He has 8 different Bomb Formulae, each costs 250 Crowns. They are:
If you feel like you’re wasting your Crowns, then look at this tip. Create a backup save before buying those bomb formulae, sell all your crafting materials/alchemy ingredients to the merchant and with this money buy the formulae. Reload your saved game, at this point, so you will get your Crowns back.