* Instructions: The instructions for Rogaine (minoxidil) clearly state that you should apply it to a dry scalp and allow it to dry completely. You are not supposed to rinse it out.
* How it Works: Minoxidil needs time to be absorbed into the scalp to stimulate hair follicles. Rinsing it out would prevent this absorption.
* Important: Always follow the specific instructions provided with your Rogaine product, as formulations and application methods can sometimes vary slightly.