How does hard water affect my hair?

You need water to shampoo your hair and hard water makes it more difficult to create a good lather and to rinse your hair. Hard water tends to make the scales stand up which makes your hair feel rough and tangled. Since your hair is tangled and rough, it is more difficult to rinse out all of the soap. Soap is less effective in very hard water because it reacts with the excess minerals to form calcium or magnesium salts. These are not easily solubleĀ in water and can result in soap film. Washing your hair with soft water will have a different result because it leaves fewer deposits on the hair.