A method of treating the hair including applying to the hair a shampoo composition, rinsing the shampoo composition from the hair, applying to the hair a concentrated conditioner composition, and rinsing the concentrated conditioner composition from the hair. The shampoo composition includes an anionic surfactant, one or more amphoteric or zwitterionic co-surfactants, and less than 0.25% of one or more shampoo high melting point fatty compounds. The concentrated conditioner composition includes one or more silicones, perfume, and less than 10% high melting point fatty compounds.