Clarifying, purifying, or detoxing shampoo's and scrubs are what you need to give your hair and scalp a deeper cleanse. Essentially you are trying to remove all kinds of stuff that builds up in your hair causing it to feel greasy, weighed down, unmanageable and lacklustre. The formulations within a clarifying shampoo are different than regular shampoos as they help to revive and refresh by removing those deposits, restoring your hair's shine, softness, and manageability.