Well I don't get build up but I will suggest that when you are washing your scalp with the conditioner make sure you are really scrubbing it clean, it doesn't have to be hard or vigorous just spend some time gently working away the oils and build up. What helps me get an even better clean with my conditioner is standing directly under the water and massaging and cleaning my scalp as the conditioner is being washed away. Let the water really run through your hair at the scalp. Also you may want to try not applying any of your leave ins or styling products on your scalp and roots. Try cleansing with a sulfate free shampoo once a week or once every two weeks and focus on your scalp.

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