Lather, rinse, repeat. If this sounds like your regular hair wash routine and you’re not getting the results you were expecting, you might want to consider adding a weekly deep cleansing treatment for your scalp. Much like the way we remove makeup and wash our face, a deep clean of the scalp can help remove buildup from hair products and other debris that can cause itching, irritation or damage. Sticking to a good scalp care routine— using the right shampoo and conditioner, practicing scalp massage and using a scalp detox serum — should be all you need to remove scalp buildup for good and maintain healthy hair follicles that will promote healthier hair growth.