Warning: Spoilers for Detective Comics #1091Bruce Wayne has been in the hero business for a long time, and not even Batman can escape the effects of aging on his body - until now. Batman has just taken a risky solution for his advancing age, and taking it has forever altered his biology in a way that might even put him on par with Superman.

In Detective Comics #1091 by Tom Taylor, Mikel Janín, and Wes Abbott, Batman wrestles with whether he should take a de-aging serum called Sangraal. Available only to the rich and powerful, Sangraal supposedly turns back the clock to make its s young again. After he's forced to it his age is becoming a problem, Batman agrees to let Sangraal's founder, Scarlett, ister the drug to him.

Against his better judgment, Batman lets himself be injected with the cure to his age problem. Now, Batman's body is reverting to a more youthful state in a lore change that could have consequences down the road.

Batman Fixes His Age Problem with a Mysterious De-Aging Serum

Bruce Wayne Takes a Medical Solution to His Greatest Dilemma

Robin's youth gives him a major combat advantage over him. When Batman tries to his son in a fight, he gets a reality check when a simple knee injury brings him down. That injury is the catalyst that pushes him to take Sangraal, recalling Scarlett's proposal about its age reversal effects.

After undergoing his first treatment of Sangraal, Batman pays a visit to the Penguin's Iceberg Lounge to put his upgraded body to the test. Oswald Cobblepot's goons attack him, and he takes them out with newfound ease. This battle serves as a stark contrast to his earlier skirmish, as he can move freely without the aches that come with age. With Sangraal in his system, Batman fights with a vigor he hasn't known since his younger days, and his injured knee no longer gives him as much trouble either. The effects of the youth serum are already prevalent as it rewrites Batman's biological structure.

Batman's Cure for His Aging Body Could Make Him Immortal

Bruce Wayne's Potential Immortality Isn't Without Consequences

Sangraal doesn't merely revert Bruce's body to a youthful condition; it slows his aging process as well. Therefore, Batman could be on his way to achieving immortality. While the prospect of immortality may seem like an upside to taking Sangraal, Batman views it as a downside more than anything else. He confides in Superman about this possibility and asks how he deals with outliving those he cares about, hinting at a future where Batman and Superman outlive most of the characters around them. Now that he has taken Sangraal, time will tell whether Batman truly has overhauled his biology to become immortal.

Detective Comics #1091 is available now from DC Comics.