The Elixir of Life is a magical serum that belonged to Candra. She used the Elixir to greatly extend the normal lifespans of her servants (like Mercy LeBeau).^[5]

In the 17th century, Sir Isaac Newton of the Brotherhood of the Shield discovered the "Secret Alchemy," the Elixir of Life, and hoarded it for himself. By diluting the Elixir, Newton also developed different variants of it that he called by different names depending on its potency (e.g. Infinity Formula). Slowly doling out the Elixir and its variants allowed Newton to buy loyalty from the other members of the Brotherhood.^[1] However, Newton eventually ran out of Elixir; thus, the Brotherhood's prolonged immortality ended.^[6]

Zheng Zu used the "Elixir Vitae" which was created centuries earlier by his ancestor Shaka Kharn.^[3] He gave it to at least two other individuals his elixir, his daughter Zheng Bao Yu and his loyal agent Ducharme.^[7][8]