Loli, I’ve invented such a substance. I spray it on anyone who annoys me, so that I can point to and giggle at their private parts, but without actually harming the person. But, I regret that I won’t share the formula; it’s my own.
Maybe you where watching Star Trek TNG where Data was kidnapped by a collector? Where he threw acid on his star fleet uniform. To get him in civilian clothes. If you want to justify from the fictional universes president?