facts

More than 60% of girls aged 7 to 10 wear lipstick and more than 40% wear eye-shadow or eyeliner. Almost 25% wore mascara and 60% wore perfume.
Mintel

73% of British girls 15-17 say that when they feel bad about themselves it is usually to do with looks or weight (globally 55%), rather than abilities etc.
Beyond Stereotypes: Rebuilding the foundation of beauty beliefs (2006)