Can I expect improved results with the higher concentrations of minoxidil?
The 5% and higher minoxidil solutions and lotions have the potential to promote regrowth of more hair and thicker hair, but they do not change the genetic properties of the hair follicles. Although the growth (anagen) phase may be lengthened, the dormant (telogen) phase of approximately 100 days is unchanged. In order to see results, the existing thin hair shafts need to be replaced with thicker ones. This is why it usually takes between 3 and 6 months to appreciate significant hair regrowth with any concentration of minoxidil solution of 2% or greater.