Matrix opti.care Smooth Straight Shampoo is ideal for straightened hair and helps cleanse your tresses gently yet effectively. The Matrix Smooth Straight Shampoo is notable for maintaining straight hair for up to 72 washes. The Matrix opti.care Smooth Straight Shampoo is suitable for chemically-treated hair as it nourishes and moisturises your locks with ingredients like shea butter, essential fatty acids, vitamins A and E. After straightening your hair at the salon, the Matrix smoothing shampoo tames your locks and maintains the smoothness in your hair. The opti.care shampoo for split ends also protects your hair from external aggressors and helps soften the texture. HOW TO USE Applyto wet hair and lather with a gentle massaging motion. Rinse. Fllow with Professional Ultra Smoothing Conditioner.