Martial arts legend Jet Li has been accused by online sceptics of wearing “artificial skin” in a topless video clip in which he sought to refute persistent rumours that he had undergone a heart transplant.

The Singapore-based action star has been dogged for years by speculation about his health. Now in his sixties, Li has visibly aged in public appearances, prompting waves of concern — and conspiracy theories — among fans across Asia. The most extreme of the rumours claimed he had undergone a heart transplant, a story that circulated widely on Chinese social media despite a complete absence of evidence. In an apparent bid to put the speculation to rest, Li appeared in a topless clip showing his torso, presumably to demonstrate that there were no transplant scars.

Instead of quelling the rumours, the video spawned a new one: some netizens claimed the skin on display looked unnatural and accused the star of wearing “artificial skin” or otherwise faking the footage. The accusation is the latest entry in a long-running genre of internet sleuthing in which fans scrutinise celebrity images frame by frame, often arriving at conclusions that say more about the anxieties of the audience than the reality of the subject.

Li, born Li Lianjie, is one of the most famous martial artists in cinema history, with a career spanning classic Hong Kong kung fu films, Hollywood blockbusters and mainland Chinese epics. He has lived in Singapore for years and is a Singapore citizen, making his health a matter of particular interest to local fans. He has spoken in the past about his health challenges, including hyperthyroidism, which he has said affected his physical condition and appearance. He has also discussed his interest in Buddhism and philanthropy through his One Foundation charity work.

The episode illustrates the no-win situation ageing celebrities face in the social media era. Say nothing, and rumours fill the silence; address them, and every pixel becomes evidence for a new theory. For Li’s devoted fans, the concern is genuine — he was the invincible hero of their youth, and watching him age is emotionally difficult. For the rumour-mongers, the “artificial skin” claim is just the latest viral hook.

Neither Li nor his representatives have given the “artificial skin” allegation the dignity of a detailed rebuttal beyond the original clip itself. In the attention economy, responding to every conspiracy theory is a losing game, and Li’s team appears to have calculated that silence is the better strategy. The heart transplant rumour, like the “artificial skin” claim built on top of it, remains exactly what it has always been: an internet story without a shred of supporting evidence, sustained by the strange alchemy of fandom, ageing and the endless scroll.