The soap might be dried out. Get a new soap and lather it with water to get its moisture. You also should wash your hands with it first, because new...
It's possible that your issue with scum marks isn't due to the soap you use, but rather the water. People who have hard water tend to not be able to...
One of the best tools for brushing hair is a detangling brush. They are designed to gently work through knots and tangles without pulling or breaking the hair. Detangling brushes...