Fun facts:

Snake oil actually works.

It's long been used in traditional Chinese medicine and gained popularity among miners and railroad workers back in the old West, where there were very few common dietary sources of essential fatty acids like EPA/DHA and vitamin E.

You need these nutrients for things like healing wounds, fighting infections, and making the body's natural anti-inflammatory and anticoagulant compounds.

The trouble—and the modern meaning of "snake oil"—arose when shysters came along selling mineral oil, which does nothing, as snake oil.

tl;dr: LADIES & GENTLEMEN, DON'T BE DECEIVED AND ACCEPT NO SUBSTITUTES, DOCTOR T.F. LANNISTER'S PATENTED NUTRI-OIL IS THE OOONLY INTERNAL LINIMENT guaranTEED TO CONTAIN 100% PURE COLD-PRESSED OIL OF THE CHINESE WATER SNAKE ENHYDRIS CHINENSIS.