Potion of Restoration is a special potion introduced in the Blood and Wine expansion for The Witcher 3: Wild Hunt. It allows the player to redistribute their ability points that were used for mutations but it does not return the mutagens used, so you'll have to re-gather them to unlock any abilities.

It is the second known potion in the game that can be bought exclusively from merchants, though it is relatively expensive early on with a price tag of 1000Oren3.

The following merchants can sell it: