The type of water that is used to make soap and wash the skin can affect the performance of the soap and the condition of the skin. Hard water, which contains high levels of minerals such as calcium and magnesium, can make soap less effective and may leave a film on the skin. It can also make it more difficult to rinse soap off the skin and may contribute to dryness and irritation. Soft water, which has had these minerals removed, can make soap more effective and may be gentler on the skin. However, it is important to note that the type of water that is best for the skin can vary depending on individual needs and preferences, and it is always a good idea to use a moisturizing soap and follow up with a moisturizer to help protect the skin.