well as far as i know yea girls are using bitcoins .... and m sure if some beauty product manufacture adopts bitcoins it will surely make more girls interested in it 
yeah...look at news more cosmetic now accpt bitcoin
Miamis Vanity Cosmetic Surgery Now Accepts Bitcoin
https://bitcoinmagazine.com/8144/miamis-vanity-cosmetic-surgery-now-accepts-bitcoin/
http://www.coindesk.com/florida-cosmetic-surgery-bitcoin/
http://thenextweb.com/insider/2013/11/02/vanity-cosmetic-surgery-claims-first-medical-center-world-accept-bitcoin/