Rogaine for Men labeling advises 12-month usage may be needed for "best results".
This article was originally published in The Tan Sheet
Executive Summary
OTC ROGAINE FOR MEN LABELING ADVISES AT LEAST 12 MONTHS OF USE to obtain the "best results" from the Rx-to-OTC switch product. The final labeling of Pharmacia & Upjohn's over-the-counter minoxidil 2% topical solution states that "up to 12 months of use may be needed to see your best results."