Nonsense!!!!!!!
I am a living breathing lab rat on this subject, I've had 2 full years seperated by 3 months in between of PURE minoxidil 5% use.
Year one: I used it every day twice with exactly 1 ml each use for about six months. Then for another 4-6 months (remainder of this fiscal year) I only used it once a day, rarely twice and at the same 1 ml doses. It did still work at this loww dose.
3 months pass without ANY rogaine use, lost all my gains! Mistake!
Year 2, second trial and capability of comparison to the former trial (keep in mind I am 1 1/2 years more progressed with male pattern baldness): I used 1 1/2 ml of 5% min and I have used it twice (sometimes 3) a day up until now. Here is my conclusion.
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The first six months of each fiscal year I did better (more regrowth) on the former compared to the latter, but I responded at 3-4 months on the former compared to only 2 months with the latter trials. And as for the remainder (second half of each fiscal year), I am doing better (faster/ more growth) on the second trial than the first trial.
Reasons: One reason is I applied more min on the second trial, and even though I am more progressed (one whole Norwood step) I am responding better. I have also gotten good at applying min in the EXACT same spot every time which I believe is the most important thing in applying topicals.
So for me, I know for a fact that more min is better.