Amanda Bynes says you have to look sexy to be sexy.

The troubled 27-year-old actress - who has had cosmetic procedures in the past - insists beauty is skin deep and she only respects people who are attractive.

In a series of Twitter posts: ''It doesn't matter if you feel sexy if you don't look sexy. I don't care what you say about me if I don't find you physically attractive.''

Amanda had her first nose job last month to remove skin that was like ''webbing'' between her eyes and she insists the surgery has been a ''miracle'' for her.

In other tweets she said: ''Surgery is a complete miracle for me - nothing...can hold you back from living out your dreams. There's a surgery for everything that's wrong with you! (sic)''

The 'Hairspray' star has endured a turbulent time in the last several months, and has been charged with offences including evidence tampering, reckless endangerment and marijuana possession.