Dishwashing Liquid Great for Blondes
There are clarifying shampoos on the market. These are designed to take mineral deposits out the hair and brighten the color. They are very good for natural blondes to use occasionally. My hair dresser tipped me off and told me to use clear dish washing liquid as shampoo once in awhile for the same effect and much less money. Check with a professional if you use hair dye as it may strip some of the color.