As late as 1967, Hauser was dismissed as a crank and compared with such obvious charlatans as Dudley J. LeBlanc, promoter of the cure-all Hadacol.
Even in 1967, Hauser's claims were met with skepticism, and he was likened to other notorious charlatans like Dudley J. LeBlanc, who had successfully promoted the supposed health benefits of Hadacol.