Achieve a professional, frizz-free finish with the Pureology Smooth Perfection Smoothing Serum. Formulated for normal to thick, colour-treated hair, the serum provides long-lasting frizz control & seals the hair's cuticles to lock in natural moisture levels. Delivers heat protection to defend against damage caused by styling tools & can be applied to dry hair for a sleek, calm finish, or damp hair for the perfect blow dry. Enhances shine & restores smoothness from root to tip.