Conventional soaps used for hand washing do not indicate whether the soap has been used for an appropriate amount of time for the process to be effective. As a result, hands are often washed for too short an amount of time for the process to be effective in cleansing hands. Properly washing your hands is one of the best ways to prevent infection and the spread of diseases. A halochromic handwash composition can indicates whether hands have been washed for an approximate predetermined period of time. The hands are washed until the foam changes color. The color change authenticates the termination of germs/bacteria on the skin. Halochrome technology is one of the most easy, convenient, and inexpensive approach to facilitate effective hand washing.