In simplest terms a shampoo is actually a detergent.This is because it is actually hard on your hair and drys it.This why conditioner was invented.Shampoo is derived from a ‘Hindi’ word ‘capo’ which means to press.
some shampoos like Denorex use tar substance to clean dandruff.And speaking of Dandruff-In 2000 Winnipeg,Canada was recored to have the highest percentage of people having dandruff..looks like the D2k bug instead of the y2k bug that hit us.
you might scratch your head after a shower because your shampoo might contain Ammonium Laureth Sulfate,a surfactant(used to make bubbles) that causes irritation to the skin.
.Its good to create something out of cautiousness than be a nervous wreck.Cautious-ness and being weary of something does provide creative inspiration-Hence Proved!! 
