Matrix Opti Straight Japanese Ionic Hair Straightening Cream - Resistant Easy to use by cold smoothing or by combining with a straightening iron / blow dryer Make you hair salon straight - Including full detailed instructions. Matrix Opti Straight Hair Straightening Cream - for Resistant, Coloured or Normal Hair types A professional hair straightening kit by Matrix with multi Ionic technology. It is an easy to use, gentle hair straightener that effectively straightens the curl of natural curly hair. Matrix opti straight can be used as a cold smoothing system or more prominent results can be attained by combining with a flatiron and blow dryer Hair looks: Relaxed curls, manageable waves or totally straight sleek hair full of shine "It's Opti.Straight's Multi-Ionic technology that delivers top-class condition straightening. It's got customized strengths to optimally enhance any hair type and an Asian Tea Fragrance which neutralizes the ammonia odor and gives you an uplifting aromatic experience even during the treatment itself.-Matrix"