Direct answer
To replenish potions and oils or create new bombs, go to the Meditation panel. Your items will only be replenished if you are carrying strong alcohol, which used as an alchemical base in the brewing process.
Result
Oils, potions and bombs are consumed on use and can run out. Replenish them automatically in the Meditation panel using hard alcohol from your inventory.
Game homeThe Witcher 3: Wild Hunt RemasteredAll games
