Nizarol should be used every day for the first week. After this initial week, you should only use it no more than 3 times per week.
Nizoral 2% is only available by prescription. A 1% solution is available OTC, but it will not help much in reducing hairloss. Using twice as much 1% does not equal 2%... If you want help locating some 2%, drop me an email.
-Stew