There are many benefits on using a Sulfate Free Shampoo. One of them is that they are Hypoallergenic. It means that you will not have an allergic reaction to the harsh chemical used in a regular shampoo. Also the Sulfate free shampoo are eco friendly. When you rinse your hair after shampooing, there wont be any chemicals going down the drain.
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i think either potassium(II) sulfate or potassium sulfate
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Copper sulfate is not a metal There are two compounds called Copper Sulfate, which are salts of the metal Copper. CuSO4 is Copper (II) Sulfate, once known as Cupric Sulfate. Cu2SO4 is Copper (I) Sulfate, once known as Cuprous Sulfate.