The application process: The foam can be applied with your hands, while the solution requires a dropper. Both ways are effective and it’s up to you which one you prefer.
- The ingredients: Some people are sensitive or allergic to certain ingredients found in minoxidil solution that aren’t included in the foam.
Now here’s the most important similarity: Whether sold as a foam or as a solution, minoxidil is an FDA-approved treatment for male pattern baldness that works for approximately 70% of individuals. The foam and solution versions are equally effective at stopping hair loss (and even promoting regrowth for some men).
To learn more about minoxidil and how it works to treat hair loss, you can read our article on the topic: How Minoxidil Stop Hair Loss.