Healing Potion is one of the three skins released under the ‘RPG’ part of the RPG Games offer. It was available for purchase in mid August 2017.
Healing Potion could be purchased for $19.99 in a deal that included the Scroll skin and either 50000 coins (Browser) or 1800 DNA (Mobile). It was not available for individual purchase and may not be available for purchase in the future.
Details of this offer may vary depending on location and platform.