Which mineral might be present in water that can affect hair treatments?

Calcium is a mineral that can be present in water, particularly in hard water, and it has a significant impact on hair treatments. When hair is washed or treated with products in hard water, the calcium can bind with the substances in shampoos and conditioners, making them less effective. This can result in hair that feels dry, brittle, or more difficult to style because the minerals interfere with the product's ability to properly cleanse or moisturize the hair.

In addition, high levels of calcium in water can lead to mineral buildup on the hair over time, which can weigh it down and diminish its natural shine. For these reasons, understanding the mineral composition of water is critical for anyone providing hair treatments, as it can directly influence the outcome and effectiveness of the services performed.