In the mid-1800s, Chinese laborers working on the American railroads brought with them a traditional remedy — oil made from Chinese water snakes. Rich in Omega-3 fatty acids, it genuinely helped ease joint and muscle pain.
Curious Americans tried it, but soon, opportunistic salesmen started selling fake versions made of alcohol, turpentine, and spices, falsely claiming they could cure anything. In 1917, U.S. authorities tested Clark Stanley’s Snake Oil Liniment and found no snake oil at all.From that moment, “snake oil salesman” became a byword for fraud and false promises. Ironically, the original Chinese snake oil worked — it was the imitation that turned it into a joke.
So when someone says, “That’s snake oil,” they’re not talking about medicine, but about anything too good to be true.