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Oral Minoxidil vs. Topical Minoxidil for Male Pattern Hair Loss

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6 min

Author

Misha Tabatabai

Reviewed by

Dr. Rachel Jecker, MD

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Hair Loss

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Key Takeaways

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Key Takeaways

  • Male pattern baldness affects 80% of men, and the risk grows with age

  • A clinical trial compared oral minoxidil to topical minoxidil over 24 weeks, and both significantly boosted hair growth

  • Around 70% of men using oral minoxidil achieved clinical improvement at the crown of their head, compared to around 46% of men using topical minoxidil

  • Oral minoxidil caused more unwanted body/facial hair growth (49% vs 25%), while topical minoxidil caused more scalp irritation and rashes

  • Hair growth from minoxidil lasts only as long as you continue using it; hair loss will begin again within a few months of stopping

Male pattern hair loss can be tough to treat, and topical medications can be a real pain, literally, in some cases. Now, new research indicates there may be another option to talk to your doctor about.

A head-to-head randomized clinical trial tested a once-daily oral minoxidil tablet against the standard 5% topical minoxidil solution in men with male pattern hair loss. At 24 weeks, both treatments significantly boosted hair growth. The results however were not identical, and neither were the side effects. (4)

Key Takeaways

  • Male pattern baldness affects 80% of men, and the risk grows with age

  • A clinical trial compared oral minoxidil to topical minoxidil over 24 weeks, and both significantly boosted hair growth

  • Around 70% of men using oral minoxidil achieved clinical improvement at the crown of their head, compared to around 46% of men using topical minoxidil

  • Oral minoxidil caused more unwanted body/facial hair growth (49% vs 25%), while topical minoxidil caused more scalp irritation and rashes

  • Hair growth from minoxidil lasts only as long as you continue using it; hair loss will begin again within a few months of stopping

Male pattern hair loss can be tough to treat, and topical medications can be a real pain, literally, in some cases. Now, new research indicates there may be another option to talk to your doctor about.

A head-to-head randomized clinical trial tested a once-daily oral minoxidil tablet against the standard 5% topical minoxidil solution in men with male pattern hair loss. At 24 weeks, both treatments significantly boosted hair growth. The results however were not identical, and neither were the side effects. (4)

What Is Male Pattern Hair Loss?

Male pattern baldness, also known as androgenic alopecia, is a form of hair loss where you permanently lose the hair on your scalp, experience hair thinning, and a receding hairline. Some people notice the hair on the crown of their head thinning first, while others notice their hairline moving further back on their head. Male-pattern baldness happens in 2 out of 3 men, and the risk of hair loss grows as you age. Around 20% of men show signs of hair loss before age 30, 53% experience hair loss by age 50, and roughly 80% of men will lose hair by age 70. (6)

The condition is caused by a mix of aging, hormones, and genetics. Androgens are male sex hormones, like testosterone. Androgens play a role in both hair growth and loss. It’s believed that an androgen called dihydrotestosterone (DHT) is associated with hair follicles slowly shrinking over time. When your hair follicles shrink, your hair becomes thinner and shorter, until it stops growing entirely. This often presents in a typical pattern with hair loss starting at the crown of the head and the hairline. You may notice your hairline slowly taking on an “M” or “U” shape as the hair at the sides of the forehead stops growing. (1)

Male pattern baldness isn’t a danger to your physical health, but it can impact you socially and psychologically. Some men experience emotional distress, anxiety, and depression. Worrying about balding can prevent people from attending social events and create isolation. Keep in mind, without medication or treatment, the loss of hair follicles from male pattern baldness is irreversible. This is one reason why consistent, long-term treatment seems to be so important.

What Is Male Pattern Hair Loss?

Male pattern baldness, also known as androgenic alopecia, is a form of hair loss where you permanently lose the hair on your scalp, experience hair thinning, and a receding hairline. Some people notice the hair on the crown of their head thinning first, while others notice their hairline moving further back on their head. Male-pattern baldness happens in 2 out of 3 men, and the risk of hair loss grows as you age. Around 20% of men show signs of hair loss before age 30, 53% experience hair loss by age 50, and roughly 80% of men will lose hair by age 70. (6)

The condition is caused by a mix of aging, hormones, and genetics. Androgens are male sex hormones, like testosterone. Androgens play a role in both hair growth and loss. It’s believed that an androgen called dihydrotestosterone (DHT) is associated with hair follicles slowly shrinking over time. When your hair follicles shrink, your hair becomes thinner and shorter, until it stops growing entirely. This often presents in a typical pattern with hair loss starting at the crown of the head and the hairline. You may notice your hairline slowly taking on an “M” or “U” shape as the hair at the sides of the forehead stops growing. (1)

Male pattern baldness isn’t a danger to your physical health, but it can impact you socially and psychologically. Some men experience emotional distress, anxiety, and depression. Worrying about balding can prevent people from attending social events and create isolation. Keep in mind, without medication or treatment, the loss of hair follicles from male pattern baldness is irreversible. This is one reason why consistent, long-term treatment seems to be so important.

What Is Minoxidil and How Does It Work?

Minoxidil is a medication often used for hair loss. It works by increasing blood flow to hair follicles, decreasing inflammation, and blocking the effects of DHT on the hair follicle. (5)

Minoxidil is used to stimulate hair growth in adults with a certain type of baldness. It can be applied topically (to the skin), or taken orally as a pill. The topical form comes as both a foam and a solution. The topical form needs to reach the skin of the scalp to be effective, so people with longer hair often prefer the minoxidil solution. The foam often works best for people with shorter hair, since it can be difficult to get the foam on the scalp past long hair. Because topical minoxidil is applied just to the scalp and is not significantly absorbed throughout the body, its effects are concentrated at the scalp. Oral minoxidil enters the bloodstream and affects the whole body systemically, which has implications for both its effectiveness and its side effect profile, as the trial results below illustrate. The use of oral minoxidil for hair loss is considered off‑label and is based on emerging evidence and clinical judgment. (2, 3)

There are a few important things to understand about how minoxidil works over time. If hair growth is going to occur, it usually happens after the medicine has been used for several months, and it lasts only as long as the medicine continues to be used. Hair loss will begin again within a few months after minoxidil treatment is stopped.

It's also worth knowing that studies have shown the medicine works best in younger patients who have a short history of hair loss. This is likely because minoxidil cannot reverse the loss of follicles. It works by encouraging growth of your existing hair follicles and preventing their loss. Your provider can help you understand whether minoxidil may be appropriate given your specific situation and how far along your hair loss has progressed.

What Is Minoxidil and How Does It Work?

Minoxidil is a medication often used for hair loss. It works by increasing blood flow to hair follicles, decreasing inflammation, and blocking the effects of DHT on the hair follicle. (5)

Minoxidil is used to stimulate hair growth in adults with a certain type of baldness. It can be applied topically (to the skin), or taken orally as a pill. The topical form comes as both a foam and a solution. The topical form needs to reach the skin of the scalp to be effective, so people with longer hair often prefer the minoxidil solution. The foam often works best for people with shorter hair, since it can be difficult to get the foam on the scalp past long hair. Because topical minoxidil is applied just to the scalp and is not significantly absorbed throughout the body, its effects are concentrated at the scalp. Oral minoxidil enters the bloodstream and affects the whole body systemically, which has implications for both its effectiveness and its side effect profile, as the trial results below illustrate. The use of oral minoxidil for hair loss is considered off‑label and is based on emerging evidence and clinical judgment. (2, 3)

There are a few important things to understand about how minoxidil works over time. If hair growth is going to occur, it usually happens after the medicine has been used for several months, and it lasts only as long as the medicine continues to be used. Hair loss will begin again within a few months after minoxidil treatment is stopped.

It's also worth knowing that studies have shown the medicine works best in younger patients who have a short history of hair loss. This is likely because minoxidil cannot reverse the loss of follicles. It works by encouraging growth of your existing hair follicles and preventing their loss. Your provider can help you understand whether minoxidil may be appropriate given your specific situation and how far along your hair loss has progressed.

Effectiveness of Minoxidil

Visible Improvement at the Crown

For many men, the crown of the head is one of the most frustrating areas where androgenic alopecia occurs. Of the men in the study using oral minoxidil, around 70% achieved clinical improvement in hair growth at the crown, compared to around 46% of those using the topical foam. These results reflect this specific study population, and individual responses can differ.(4)

Hair Density Results

When the researchers looked at how many of the hairs in the treatment areas were fully grown thicker strands, the two treatments came out roughly equal. That suggests that the visible difference in effect came down to the amount of growth of the new hairs, rather than a difference in the number of hairs.

One possible explanation for the difference in visible regrowth is how each form of minoxidil reaches the hair follicles. Topical minoxidil has to be absorbed through the skin of the scalp, and getting consistent, even coverage across the treatment area can be tricky. Oral minoxidil travels through the bloodstream, reaching all follicles from the inside out. That more uniform delivery may help explain why the oral form showed a greater visible impact at the crown, though adherence likely plays a role too. A once-daily pill can simply be easier to use more consistently than a twice-daily topical application, and it can be hard to see the back of your own head to know the topical medication is applied thoroughly.

Effectiveness of Minoxidil

Visible Improvement at the Crown

For many men, the crown of the head is one of the most frustrating areas where androgenic alopecia occurs. Of the men in the study using oral minoxidil, around 70% achieved clinical improvement in hair growth at the crown, compared to around 46% of those using the topical foam. These results reflect this specific study population, and individual responses can differ.(4)

Hair Density Results

When the researchers looked at how many of the hairs in the treatment areas were fully grown thicker strands, the two treatments came out roughly equal. That suggests that the visible difference in effect came down to the amount of growth of the new hairs, rather than a difference in the number of hairs.

One possible explanation for the difference in visible regrowth is how each form of minoxidil reaches the hair follicles. Topical minoxidil has to be absorbed through the skin of the scalp, and getting consistent, even coverage across the treatment area can be tricky. Oral minoxidil travels through the bloodstream, reaching all follicles from the inside out. That more uniform delivery may help explain why the oral form showed a greater visible impact at the crown, though adherence likely plays a role too. A once-daily pill can simply be easier to use more consistently than a twice-daily topical application, and it can be hard to see the back of your own head to know the topical medication is applied thoroughly.

Side Effects of Minoxidil

Both treatments had side effects, though slightly different. 

The rates of unwanted hair growth on the face or body were different between oral and topic minoxidil. This side effect impacted approximately 49% of men who used oral minoxidil and approximately  25% of men who used topical minoxidil. As we mentioned above, topical minoxidil has a local effect on the scalp. Since it’s not touching the face or body, it’s much less likely to cause hair growth in those areas. Systemic minoxidil (in the form of an oral pill) spreads throughout your entire body. This whole-body effect of oral minoxidil means that anywhere on the body can respond to the treatment by growing more hair. 

On the other hand, irritation and rash of the scalp were noted primarily in patients who used topical minoxidil. This may be in part because alcohol is used as the base for most topical preparations, and can be drying or irritating to the skin. Neither medication is universally better for everyone. Individual factors like skin sensitivity, lifestyle, and other personal preferences may influence which option you prefer. It is important to discuss with your provider which one is more suitable for you.

The “Dread Shed” and Minoxidil Hair Shedding

If you’ve looked into minoxidil for hair loss, you’ve likely come across the “dread shed.” This refers to a period of increased hair loss that can occur 2-4 weeks after starting minoxidil. For many people, this creates understandable anxiety. Why would a medication that’s supposed to prevent hair loss cause a period of increased hair loss?

Part of how minoxidil works is by changing the hair’s shedding cycle. It shifts hair to spend more time in the growth phase (anagen), and less time in the resting phase (telogen). Between these two phases is the shedding phase (exogen). Minoxidil moves more hair into the growth phase. Hair must go through the shedding phase at the same time to get to the growth phase! The “dread shed” usually lasts between 3 and 6 weeks, and resolves on its own. (7, 8)

FAQs

Is the unwanted hair growth from oral minoxidil permanent?

Once you stop taking it, yes. But the degree and distribution of hair growth differs from person to person. Consider this when talking to your practitioner.

How long before I see results from minoxidil for hair loss?

The study of oral vs topical minoxidil measured outcomes at the 24-week mark. The hair growth process is generally slow, and many practitioners recommend using a treatment for at least six months before determining whether it’s working.

What are the side effects of oral minoxidil?

In a clinical trial, roughly 49% of men using oral minoxidil experienced unwanted body or facial hair growth, since the oral pill affects your entire body rather than just the scalp. Patients taking oral minoxidil were also more likely to experience headaches. Discuss these risks with your healthcare provider to determine whether oral minoxidil is a suitable option for you.

Does minoxidil work for hair loss?

Yes. In a clinical trial, both oral and topical minoxidil significantly boosted hair growth over 24 weeks. Around 70% of men using oral minoxidil achieved improvement in hair loss at the crown, compared to around 46% using topical. 60% of men taking oral minoxidil saw improvement in the frontal scalp, as did 48% of men using topical minoxidil. However, minoxidil works best in younger patients who have a short history of hair loss, and results last only as long as the medicine continues to be used. Individual results can vary, and it’s important to talk with your healthcare provider about whether these potential benefits and risks make sense for your specific situation.

Can you take minoxidil and finasteride together?

Some doctors may recommend a combination treatment for patients who haven't seen results with just one medication. Minoxidil essentially increases hair growth while finasteride helps slow down hair loss. Depending on how much hair loss has occurred, the combination may or may not be recommended. This is a decision best made with your doctor after a comprehensive visit.

Where can I get minoxidil?

Topical minoxidil is available over the counter at most pharmacies. Oral minoxidil requires a prescription from a healthcare provider. If you're interested in exploring whether oral or topical minoxidil is right for your situation, a provider on Mochi Health's telehealth platform can evaluate your needs and discuss your options.

Check Your Eligibility

If you’re struggling with continued hair loss or are noticing it begin, your practitioner may discuss treatments like oral minoxidil or combination therapies with you, depending on your personal needs.

A healthcare provider on Mochi Health’s telehealth platform can help you determine the best course of action for your needs. Check your eligibility here.


References:

  1. Male Pattern Baldness (Androgenic Alopecia): Stages, Treatment.” Cleveland Clinic, 9 Dec. 2022, http://my.clevelandclinic.org/health/diseases/24515-male-pattern-baldness-androgenic-alopecia

  2. Minoxidil (Topical Route) Description and Brand Names.” Mayo Clinic, 1 Feb. 2026, http://www.mayoclinic.org/drugs-supplements/minoxidil-topical-route/description/drg-20068750

  3. Minoxidil Topical Solution or Foam.” Cleveland Clinic, 2026, http://my.clevelandclinic.org/health/drugs/18238-minoxidil-topical-solution-or-foam

  4. Penha, Mariana Alvares, et al. "Oral Minoxidil vs Topical Minoxidil for Male Androgenetic Alopecia: A Randomized Clinical Trial." JAMA Dermatology, vol. 160, no. 6, 2024, pp. 600-06. PubMed, https://pubmed.ncbi.nlm.nih.gov/38598226/

  5. Gupta, A. K., Talukder, M., Venkataraman, M., & Bamimore, M. A. (2022). Minoxidil: a comprehensive review. The Journal of dermatological treatment, 33(4), 1896–1906. https://doi.org/10.1080/09546634.2021.1945527

  6. Gupta, A. K., Wang, T., & Economopoulos, V. (2025). Epidemiological landscape of androgenetic alopecia in the US: An All of Us cross-sectional study. PloS one, 20(2), e0319040. https://doi.org/10.1371/journal.pone.0319040

  7. Nohria, A., Desai, D., Sikora, M., Mandal, S., Shapiro, J., & Lo Sicco, K. (2024). Combating "dread shed": The impact of overlapping topical and oral minoxidil on temporary hair shedding during oral minoxidil initiation. JAAD international, 15, 220–224. https://doi.org/10.1016/j.jdin.2024.03.005

  8. Jimenez-Cauhe, J., Lo Sicco, K. I., Shapiro, J., Hermosa-Gelbard, A., Burgos-Blasco, P., Melian-Olivera, A., Ortega-Quijano, D., Pindado-Ortega, C., Buendia-Castaño, D., Asz-Sigall, D., & Vaño-Galvan, S. (2025). Characterization and Management of Adverse Events of Low-Dose Oral Minoxidil Treatment for Alopecia: A Narrative Review. Journal of clinical medicine, 14(6), 1805. https://doi.org/10.3390/jcm14061805


Disclaimer: This article is for educational purposes only and should not be considered medical advice. The information provided does not constitute recommendations for treatment. Always consult with your healthcare provider about your specific situation, symptoms, and treatment options.

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