The cards in Potions: A Curious Tale allow you to unlock gates for health upgrades. I’ve compiled a list here for easy reference:
| Area | Location | Requirements |
| Old Haven | Next to Granny’s house is a gate that requires 1 Bronze Card. Open the gate and head north to find some ruins. The ruins contain three different Gold Card gates. | 1 Bronze Card 1 Gold Card |
| Old Haven | Same location as above. | 1 Bronze Card 3 Gold Cards |
| Old Haven | Same location as above. | 1 Bronze Card 5 Gold Cards |
| Fire Mountain | Lava Fields | Head as far west as you can go until you reach an island on the south where you can land. Make your way west and then north until you reach a section with poison gas by a chest. The gate is directly southwest of the poison cloud. Note that this is on the way to reach the blue barrier stone for the area. | 10 Silver Cards |
| Desert | Sphinx’s Rest | Directly northwest of the Sphinx. | 20 Bronze Cards |
| Tundra | Ice Fields | Along the northern border, directly northeast of where you find Jason. | 30 Bronze Cards |
| Swamp | Temple of Life | From the giant star, take the northwest path and then north at the intersection. Follow the path north and then west to find the gate. | 15 Silver card |
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