From Portals of Phereon Wiki
- Castalia's 3rd quest objective of getting 100 points through submitting sufficient new species/hybrids will give you one and unlocks the option to buy more from her, costing 1000 gold and one of her daily action points.
- Lumira will sometimes have one for sale, if your relationship with her is high enough to trigger the unusual stock event.
- Rose will come with one equipped in her consumable slot if you recruit her.
- Portals with Lava Girls and forest Tiles in it, can have a repeatable event involving Fire Demons using these potions.
- One can be crafted in Town. It requires 30 semen and 30 milk, taking 5 minutes and 1 stamina to create.