But They Don't Tell You What It Will Do To Your Hair. Water varies widely all around the U.S. and even within the same city. Extremely hard and moderately hard water contains minerals that cling to hair and make it difficult for shampoo to clean properly.
Soft water makes rinsing out shampoo a challenge, and can leave hair limp and dull.
Now, a trio of shampoo formulations from Robert Craig address the problems water causes that make it hard for us to tame our hair. Craig went to work on this problem after clients who traveled on business came back complaining that their usual shampoo didn't perform the way it did at home. Trained in both the science and art of haircare, Craig knew how variations in water can affect hair's health and appearance. He devoted five years to developing and testing a travel-size shampoo kit that would assure his clients great hair wherever they want. Days Kit contains three different ultra concentrated shampoos, each designed to work in a different type of water, a leave-in conditioner, and a dozen water test strips.