The one done in a salon that is meant to be 'permanent'. Has anyone done this? i have wavy frizzy hair and i really dont want to lose the wave - just the frizz. i don;t like my hair straight so blowdry it wavy. Its eye-waterignly expensive but i am hoping to save money on salon blowdries which i do far too often. The hairdresser assures me that 'minimal control' version of the treatment will result in smooth hair but keep the wave - but I am terrified of ending up straight and flat. Would be great if anyone could share their experiences - have searched but dont find a lot of genuine-looking reviews. Thank you!