Hydroxycut

Has anyone used it? I'm going on vacation in 3 weeks and dieting hardcore I'm not fat but I want to look thin in my pics and my friend that I'm going with is super thin. Of course if I look fat guys won't hit on me and I'll be super sad so I'm legit only eating salads, drinking cleanse tea at night and water but I want to lose faster a friend said he did hydroxycut and lost weight fast I'm a little afraid it'll like kill me. Any suggestions?