The Perfume Bottles introduced in Shadow of the Erdtree are a unique and powerful tool for defeating the DLC's toughest enemies. The Lightning version is especially good, so here's how to get it.
Elden Ring Shadow of the Erdtree – All Perfume Bottle Locations Guide
The Lightning Perfume Bottle is located on the Cerulean Coast, directly north of the Cerulean Coast Grace. Go through the path between the cliffs and continue straight until you reach the forested area guarded by Lightning Rams. In a small pool of water on the right side of the area, you will find a corpse holding the Lightning Perfume Bottle.
The Lightning Perfume Bottle, and any other Perfumer Build, must use the Perfumer's Talisman. This is a base game item that can be found in the Perfumer's Ruins west of the Abandoned Coffin Grace in Altus Plateau. It increases all Perfume-based damage and potency, giving you a lot more to work with.
In terms of stats, the Lightning Perfume Bottle scales with Dexterity and Faith, making it a perfect option for an agile Incantation caster. You should level these two equally for maximum effect.