I used to use Dr. Lee's 2%, but I found it too drying on my hair.
Now I use 1% Nizoral every day, and my hair doesn't dry out much.
However recently here I've read the ketoconazole stays in the scalp for days...so maybe what I was doing before was better, even though I wasn't using it everyday? *shrugs*
i dont think it matters much. i use 2% because thats what i noticed everyone was using when i started but now most people seem to use the 1%. my scalp seems fine with the 2% so i just stick with that.
My scalp feels more sensitive to the touch in some areas and itchy. So I cut back to once a week wash.
Plus I dislike how it dries out my hair.
Im of the opinion that its not good to use this stuff regularly if your scalp feels fine without it. Its a medicine and I cant see anywhere on the bottle that says its a shampoo.