Website and research by 101Leafy.
Purple Potion
For The Legend of Zelda: Spirit Tracks on the Nintendo DS.
When Link gets it
You got the purple potion! Drink it to restore eight hearts. Keep it, and if you lose all of your hearts, it will automatically restore them. It's stored in your Menu bar. Tap it to use it, but you can only use it once.
In the shops
Drink this purple potion to automatically restore eight hearts when you fall! It's … Rupees.