It is not common knowledge, but soft water makes your hair look glossier too. Continual use of hard water on your hair, after many washings, can lead to the minerals dissolved in hard water, creating a scaly film on the hair that is difficult for moisture to penetrate. Hair can begin to appear dry, dull and tangled. Softened water gives you a natural silky look that is the by-product of healthy hair, as the natural flow of essential oils are left uninhibited to cleanse and condition. Soft is best.