Are minoxidil solutions exceeding 5% more effective?
A. No. Minoxidil in alcohol based solutions reach their saturation point at approximately 5%, which is the reason why higher concentrations have not been made available in liquid form. Minoxidil lotions are available with effective concentrations up to 12.5%. ‘Effective’ is the operative word. Unless minoxidil is highly micronized, it is not effectively absorbed. If vendors claim to supply micronized minoxidil, the minoxidil particles should be less than 25 microns in size. The laboratory equipment necessary ultrafine micronization is expensive, and not generally available in most pharmacies.blue_top.
