Pee Mouthwash, Ancient Rome
The ancient Romans had some decidedly strange beauty rituals. Among them is the cringe-inducing practice of gargling with urine for fresh breath and whiter teeth. Portuguese urine, specifically, was thought to be the most effective… Thank god for toothpaste!
Next to pee mouthwash, the ancient Mayan practice of using ojon oil on the skin and hair seems even more luxurious, sane and worthwhile.