What is the effect of hard water on hair?

Hard water contains a high concentration of minerals, primarily calcium and magnesium. When hair is washed with hard water, these minerals can deposit on the hair shaft, leading to a buildup that can weigh the hair down and make it feel rough or brittle. This buildup can also make it challenging for shampoos and conditioners to penetrate the hair, resulting in dryness and a lack of moisture. Over time, this can lead to increased frizz, dullness, and an overall unmanageable texture in the hair. Understanding the effects of hard water is crucial for hair care, as it affects not only the appearance of the hair but also its health.