It is almost impossible to state positively how often the hair should be shampooed.
Shall I be shined, shampooed and shaved, Singed and trimmed 'round the edges, too?
Spierized, to have your hair cut and shampooed, from the shop of Spiers in High Street.
Bought another cake—shaved with it, shampooed with it, ate it.
We had him shampooed all over, but he could not eat dura—he feels sore.
During that time she went nowhere and shampooed her hair every day.
As the hair comes in it should be shampooed once in two weeks and brushed often, making it healthy and vigorous.
Come and be shampooed, and I had you by the nose and tell you noting.
Nits: If the head is shampooed regularly each week as above described, it will cure and prevent the condition of "nits."
The hair should be shampooed often enough to keep it clean and fluffy.
1762, "to massage," from Anglo-Indian shampoo, from Hindi champo, imperative of champna "to press, knead the muscles," perhaps from Sanskrit capayati "pounds, kneads." Meaning "wash the hair" first recorded 1860; extended 1954 to carpets, upholstery, etc. Related: Shampooed; shampooing.
"soap for shampooing," 1866, from shampoo (v.).