The word shampoo in English is derived from Hindustani chmpo ( [tpo]), and dates to 1762. The shampoo itself originated in the eastern regions of the Mughal Empire particularly in the Nawab of Bengal where it was introduced as a head massage, usually consisting of alkali, natural oils and fragrances. Shampoo was first introduced in Britain by a Bihari Muslim entrepreneur named Sake Dean Mahomed, he first familiarized the shampoo in Basil Cochrane's vapour baths while working there in the early 19th century. Later, Sake Dean Mahomed together with his Irish wife, opened "Mahomed's Steam and Vapour Sea Water Medicated Baths" in Brighton, England. His baths were like Turkish baths where clients received a treatment of champi (shampooing). Very soon due to Sake Dean Mahomed fame as a bathing expert he was appointed Shampooing Surgeon to both George IV and William IV.
In the 1860s, the meaning of the word shifted from the sense of massage to that of applying soap to the hair.