It is one of the most stubbornly persistent substances known to man, often taking days, weeks or months to disappear completely.
And Sir Keir Starmer may be picking glitter out of his suit for some time after being targeted by a protestor on stage at the Labour Party Conference in Liverpool yesterday.
He certainly appeared to still be wearing some of the shimmering material on his face as he toured TV and radio studios this morning, the day after the security lapse.
Eagle-eyed viewers took to X, formerly Twitter, to suggest that he still had a little something in his eyebrow as he brushed off the incident carried out by an 'idiot'.