The study used an older formula replaced last year with Purell Advanced, an alcohol-based product the company says is more effective at killing bacteria and even easier on the skin.
Chief executive Kundapur Vaman (K.V.) Kamath, an avid fan of Formula One racing, presented a case study of a thrilling Grand Prix in Brazil in October.
In the ensuing months, our investigation disclosed that Texas Comptroller Susan Combs had padded the economic impact study prepared by her agency for Formula One.
The formula seems to be working: A recent independent study of 30, 000 Wizards 101 users found that about one out of every five respondents play with their parents or their grandparents.