Being concerned about hair loss is not exclusive to the modern era. The Ancient Egyptians had a number of “cures” including blending a mixture of the fats taken from hippopotamus, crocodile, tom cat, snake and ibex and mixing it with water drained from boiling porcupine hair. Sautéeing the leg of a female greyhound with a donkey hoof was also recommended. Hippocrates noticed that male eunuchs did not get thinning hair problems but, unsurprisingly, castration never took off as a cure.