"Sulfates are responsible for the actual cleansing action. Sulfate-free shampoos will therefore not have that level of cleansing and this could lead to resultant dandruff and other associated problems. Thus, a small amount of sulfate is important. This way, the damage is minimised and cleansing is maintained"

Source - http://www.thehealthsite.com/beauty/is-swi...-for-your-hair/

I guess in the end it depends on what is your objective, to clean your hair or to have vibrant look?

What ways? o.o