Yes avoid shampoos or at least those with sulfate. Google the Curly Girl
Method for washing hair with silicone free conditioner no shampoo, and only finger combing hair (no Combs or brushes). V05 Moisture milk conditioner (strawberry cream I think) is excellent and dirt cheap. 89 cents to $1. Suave Natural Tropical Coconut and Tressemme Nourishing Conditioner are good too and very popular in the CG (Curly Girl) community. But the book!