Reviews provided by RottenTomatoes
New York Times:
Disappointment comes in all weights and flavors, but the brand that's generated by Hal Ashby's Shampoo is a bit harder to swallow than some.
This 1975 feature is slick and often funny, but the smugness of the satire and the stunted emotions are finally wearying.
Los Angeles Times:
Shampoo, made in 1975 but set in 1968, the night before Richard Nixon's election to the presidency, was directed by Hal Ashby and written by Robert Towne and Warren Beatty, who may have produced one of the best scripts in the last three decades.
There's a self-awareness to Shampoo that gives the movie a cleansing sadness and, oddly, makes Beatty an affectingly amoral roue.
Shampoo never quite connects its images of national mediocrity and personal self-deception.
The laughs are tempered by bleakness and the film ends up saddened by its characters' waywardness.
All the excellent creative components do not add up to a whole.