Key takeaways:
Using minoxidil (Rogaine) on your beard may improve beard growth, leading to a fuller and thicker beard.
You may have to use minoxidil for 4 months before you see an effect on beard growth.
Topical minoxidil doesn’t cause many side effects, but some people may have skin irritation or itching.
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Minoxidil (Rogaine) is a topical over-the-counter (OTC) medication that helps to regrow and thicken hair in people with scalp hair loss. And minoxidil works for more than just the scalp. It can also help you grow a thicker and fuller beard.
Here’s what you need to know about using minoxidil for beard growth, including how well it works, how to use it, and what side effects to watch out for.
How does minoxidil work?
Minoxidil is FDA approved to regrow and thicken scalp hair in people with androgenic hair loss (hereditary hair loss). Experts aren’t entirely sure how it stimulates hair growth. It likely works by opening blood vessels near the hair follicles, which provide important nutrients for them to grow.
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Is minoxidil effective for beard growth?
Yes, minoxidil works on beard growth. The research is still in the early stages, but there’s evidence that using a 3% minoxidil solution twice a day improves beard growth. In a 2016 study, men between 20 and 60 years old had improved beard growth and hair count after 16 weeks.
Minoxidil is only FDA approved for scalp use, so using it on the beard is an off-label use. And keep in mind that minoxidil may not work to grow a beard for everyone. And it’s impossible to predict who will respond and who won’t. If you do experience regrowth, it will be lost once you stop using it.
How do you use minoxidil for beard growth?
Minoxidil is available OTC in two strengths: 2% and 5%. It’s also available in different formulations — like a solution, spray, and foam. To use minoxidil for beard growth, you can apply it directly to your entire beard area. Avoid putting it on other areas, and wash your hands after applying it.
Below are some other things to consider when applying minoxidil to your beard.
Which strength to use
In general, minoxidil 5% works better than the 2% strength for hair growth. But, these specific strengths haven’t been studied for beard growth. For best results, it may be best to start out using the higher-strength minoxidil.
How often to apply
As for how often you should use it — there’s no official guideline since not much research has been done looking at minoxidil for beard growth.
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Using it once a day may work for some people. However, in the only randomized controlled study on minoxidil lotion for beard growth, participants applied minoxidil twice a day. For fastest results, start out using it twice a day. If you notice irritation, drop down to once a day.
Foam minoxidil vs. other formulations
For some people, minoxidil foam may be easier to use on their beards than the liquid solution or spray. That’s because there’s less dripping. The foam also absorbs and dries quickly.
If you’re concerned about allergic reactions, it’s worth knowing that most foam formulations don’t contain propylene glycol. This ingredient can cause allergic reactions in some people.
Prescription-strength minoxidil
Minoxidil is also available as a prescription-strength pill. Minoxidil pills are FDA approved to treat high blood pressure, but research shows that they can also be used off-label to treat male-pattern balding. However, no studies have been done yet looking at whether oral minoxidil helps with beard growth. Prescription-strength minoxidil may be an option for you to try if you also need to treat hair loss on your scalp.
How long does it take for minoxidil to work on your beard?
Each person is different. So the time it takes for minoxidil to work for beard growth varies from person to person. In the small study mentioned above, participants using minoxidil twice daily for 16 weeks got a thicker beard. When using minoxidil on the scalp, it can take 2 to 4 months before you start noticing results. So expect to apply minoxidil to your beard area for at least 4 months before seeing results.
And keep in mind that for some people, minoxidil may not work for beard growth at all.
Are the effects of minoxidil for beard growth permanent?
No. Beard growth caused by minoxidil probably isn’t permanent. Research hasn’t looked at this question specifically. But, just like with scalp hair, beard regrowth will likely fall out within a few months when you stop using minoxidil. You’ll likely need to use minoxidil regularly for it to continue working.
Is it safe to use minoxidil on your beard?
Minoxidil does seem to be safe to use on the beard area.
When people use minoxidil on their scalp, they may experience some side effects. Because minoxidil works the same way on beard growth, these side effects may also affect the beard area if you use it there.
Minoxidil side effects
Here are some common side effects of topical minoxidil:
Hair shedding at first (this is not permanent)
Skin irritation or itching
Unwanted hair growth
Changes in hair texture
In very rare situations, minoxidil on the scalp can be absorbed deeper into your body and cause systemic side effects. Stop using minoxidil and contact a healthcare professional if you experience a fast heartbeat, dizziness, or chest pain.
Frequently asked questions
In general, minoxidil 5% works better than the 2% strength to regrow hair. Whether to use minoxidil foam or liquid is really a matter of personal preference. Here are some points to consider:
For the beard area, minoxidil foam may be easier to apply and be less irritating to sensitive facial skin. This is because some foam formulations are made without propylene glycol, a chemical that causes skin irritation.
For longer beard hair, minoxidil liquid may be easier to apply. It comes with a dropper that can reach through thick hair.
You shouldn’t use topical minoxidil if you are pregnant or breastfeeding. You also shouldn’t use it if you’ve developed an allergic skin reaction to it in the past.
When minoxidil is applied to the skin, only a tiny amount is absorbed into the body. However, it’s metabolized by the liver, so people with any liver disease should talk with a healthcare professional before using it.
Minoxidil doesn’t seem to have any effect on testosterone levels, although only a few studies have looked at this question. Some men report having sexual side effects while using minoxidil (like erectile dysfunction and decreased libido). However, this is uncommon and it’s not clear that minoxidil was the cause in these situations.
In general, minoxidil 5% works better than the 2% strength to regrow hair. Whether to use minoxidil foam or liquid is really a matter of personal preference. Here are some points to consider:
For the beard area, minoxidil foam may be easier to apply and be less irritating to sensitive facial skin. This is because some foam formulations are made without propylene glycol, a chemical that causes skin irritation.
For longer beard hair, minoxidil liquid may be easier to apply. It comes with a dropper that can reach through thick hair.
You shouldn’t use topical minoxidil if you are pregnant or breastfeeding. You also shouldn’t use it if you’ve developed an allergic skin reaction to it in the past.
When minoxidil is applied to the skin, only a tiny amount is absorbed into the body. However, it’s metabolized by the liver, so people with any liver disease should talk with a healthcare professional before using it.
Minoxidil doesn’t seem to have any effect on testosterone levels, although only a few studies have looked at this question. Some men report having sexual side effects while using minoxidil (like erectile dysfunction and decreased libido). However, this is uncommon and it’s not clear that minoxidil was the cause in these situations.
The bottom line
Minoxidil (Rogaine) is commonly used to treat thinning scalp hair. When used on the beard area, it may also help some people grow a thicker and fuller beard. There’s not much research looking at minoxidil for beard growth, but early studies show that people who use it twice a day notice a thicker and fuller beard.
It may take up to 4 months before noticing an improvement with minoxidil, so it’s important to use it consistently and to stay patient. So far, minoxidil appears safe to use on the beard area, although it’s not FDA approved for that use. You may experience some minor side effects, like skin irritation or itching, but serious side effects are very rare.
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References
Almutairi, A. G., et al. (2025). Topical minoxidil effectiveness in enhancing facial aesthetics: A systematic review and meta-analysis. Journal of Family Medicine and Primary Care.
Environmental Working Group’s Skin Deep. (n.d.). Propylene glycol.
Ingprasert, S., et al. (2016). Efficacy and safety of minoxidil 3% lotion for beard enhancement: A randomized, double-masked, placebo-controlled study. The Journal of Dermatology.
Olsen, E. A., et al. (2002). A randomized clinical trial of 5% topical minoxidil versus 2% topical minoxidil and placebo in the treatment of androgenetic alopecia in men. Journal of the American Academy of Dermatology.
Patel, P., et al. (2023). Minoxidil. StatPearls.
Ramírez-Marín, H. A., et al. (2022). Role of oral minoxidil in patterned hair loss. Indian Dermatology Online Journal.
Rauscher, M. (2007). Foaming Rogaine has advantages, expert says. Reuters.
Shokravi, A., et al. (2024). Facial hair enhancement with minoxidil—an off-label use. SAGE Open Medical Case Reports.
Singh, S., et al. (2022). Does topical minoxidil at concentrations higher than 5% provide additional clinical benefit? Clinical and Experimental Dermatology.
Suchonwanit, P., et al. (2019). Minoxidil and its use in hair disorders: A review. Drug Design, Development and Therapy.
Viana Santana, F. de F., et al. (2023). Comparative effects of finasteride and minoxidil on the male reproductive organs: A systematic review of in vitro and in vivo evidence. Toxicology and Applied Pharmacology.
