• Revive: A Revive can be used to wake a fainted Pokémon and it restores half of that Pokémon's HP. You'll only need a Revive when battling enemy Pokémon at Gyms, since training with friendly Pokémon won't result in fainting.
• Max Revive: Max Revives will wake your fainted Pokémon and fully restore that Pokémon's HP.

**NOTE: There are no pokémon centers in Pokémon Go, so revives and potions remain the only way to heal injured or fainted pokémon.