Most shampoos contain harsh detergents that can strip hair of moisture and amino acids and make it look dry and dull. This is harmful because hair needs to retain some natural oils to protect it and the scalp. Fortunately, you can wash your hair by applying conditioner to your scalp, gently rubbing your scalp with your fingertips to wash it, and then thoroughly rinsing your hair and scalp with water. Now your hair and scalp are clean, and you may continue with your normal conditioning routine. This technique works well and is much healthier for your hair.