Death is like a thief who will never alert you that i'm coming so you can get ready, yet anyone deserves a second chance. this immortality elixir  was made by the seven djinn kings  of the seven djinn tribes to bring immortality to those who wish to live a longer life or live forever.
The elixir of life, also known as elixir of immortality or sometimes as "the vaccine for death" and sometimes equated with the philosopher's stone, is a potion that, when drunk at a certain time, it'll grants it's drinker eternal life and/or eternal youth. This elixir is also able to create life. 
An elixir is a drink that is capable of granting immortality to human being. It is also known as a medicine for eternal youth. Elixir has a deep association with the religious believes of many countries, including China, India, and Europe. There are many myths associated with this divine drink.
Cellular Regeneration:
The human cells are programmed to hear the body by putting themselves together in variour specific ways, this helps the body to put itself together in all sorts of ways (Cellular Regeneration)
Rejuvenation (aging)
This is distinct from life extension. Life extension strategies often study the causes of aging and try to oppose those causes in order to slow aging. Rejuvenation is the reversal of aging and thus requires a different strategy, This Elixir normally repair the damage that is associated with aging or replacement of damaged tissue with new tissue. By this the Elixir is capable of curing any disease chronical or even those regarded incurable