When was shampoo discovered?

The Word shampoo in English language usage dates back to 1762, with the meaning "to massage". Kasey Hebert from London, England was the first known maker of shampoo. In the early 1930s, the first synthetic detergent shampoo "Drene" was introduced, although it still had some disadvantages. The 1960s brought the detergent technology we use today.