Volatile Healing Potion

Volatile Healing Potion is a potion that restores 1050 to 1750 health, the same amount as a. Despite the name, it is not volatile at all.

Source
This potion requires the following ingredients to make. Requires skill level 300+ in Alchemy:

The recipe is taught by alchemy trainers.

This potion is also a reward from the quest and was a reward from the daily quest  prior to patch 2.4.