Also known as a Health Vial, these artifacts are of demonic origin. They provide a small boost to a subject's health when consumed; large doses may even heal major wounds. Possible side effects remain unknown.
Despite the seemingly fantasy concept of a drinkable product that repairs the body, the mechanism behind the potions is fairly well understood. It seems to be based on nanoscopic particles of unknown (possibly technological) origin that swarm to wounds and heal the user.
The method of manufacture of these artifacts are currently unknown as no known facility in Hell has been located that produces these artifacts.