Potion of Restore Magicka
There is no simple "Potion of Restore Magicka" per se in The Elder Scrolls V: Skyrim, but there are several with different strengths. They are:
- Potion of Minor Magicka
- Potion of Magicka
- Potion of Plentiful Magicka
- Potion of Vigorous Magicka
- Potion of Extreme Magicka
- Potion of Ultimate Magicka
Or you can make your own using ingredients with the Restore Magicka effect or the following recipe: