Hair products, hard water and mineral deposits, chlorine and environmental impurities can all leave scalp buildup over time∫which can cause dull, greasy or limp hair. What clarifying shampoos do is work to remove the buildup that causes dull, lifeless hair. Moroccanoil Clarifying Shampoo is a deep-cleansing formula that removes everyday buildup, restoring hair to a weightless, healthy balance. Rich in argan and avocado oils, keratin, lavender, chamomile and jojoba extracts, this clarifying shampoo nourishes your hair while gently cleansing impurities away. Color-safe. Sulfate-free, phosphate-free and paraben-free. Can be used prior to a color, perm or chemical treatment for the most even results.