Kits contain lotion and powder which contain plastic ''germs'' that glow under ultraviolet (UV) light. To determine proper hand washing technique , apply oils to hands. This spreads thousands of these tiny plastic flourescent ''germs'' on the hands. Place hands under the UV light after normal hand washing. Plastic germs glow brightly to show the spots missed or not cleaned properly.
Kit comes with an 8-oz bottle of oil and 2-oz bottle of powder.