Minoxidil for Hair Loss

Minoxidil for hair loss is a well-known solution that addresses the widespread issue affecting millions worldwide. Originally a vasodilator used for hypertension, Minoxidil’s ability to promote hair growth was discovered during clinical trials.

As a topical solution, Minoxidil operates by prolonging the anagen (growth) phase of hair follicles and enhancing blood circulation in the scalp, thereby encouraging hair regrowth and reducing hair loss. Among the most scientifically supported treatments is Minoxidil, a vasodilator originally used for hypertension. Minoxidil’s efficacy in promoting hair growth was serendipitously discovered during clinical trials for its original use.

While individual responses can vary, many patients experience significant improvements. It is crucial, however, for individuals considering Minoxidil to consult healthcare professionals to ensure its suitability for their specific condition and to discuss any potential side effects.

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Table of Contents

What is Minoxidil?

chronological timeline of minoxidil

Minoxidil is a well-documented medication that has transitioned from its initial use as an oral treatment for hypertension to a topical solution for hair loss. Its journey began in the late 1960s when Minoxidil was synthesized and found to be a potent vasodilator, meaning it could effectively relax blood vessels and reduce high blood pressure.

This mechanism of action made Minoxidil an important treatment option for patients with severe hypertension that was unresponsive to other medications.

During clinical trials for hypertension, researchers observed an unexpected side effect: patients began experiencing hypertrichosis, an abnormal increase in hair growth. This serendipitous discovery prompted further investigation into Minoxidil’s potential for hair loss treatment.

before and after minoxidil

The hypothesis was that by dilating blood vessels and increasing blood flow to hair follicles, Minoxidil could potentially extend the anagen phase of hair growth and prevent follicle miniaturization, a key factor in androgenetic alopecia.

Subsequent research and clinical trials led to the development of a topical formulation of Minoxidil, specifically designed to target hair loss. The topical application minimized systemic absorption, reducing the risk of side effects associated with oral administration.

In the 1980s, Minoxidil was approved by the FDA for the treatment of androgenetic alopecia in men, and later for women1. Mechanistically, Minoxidil is thought to work by opening potassium channels, which enhances cell proliferation and differentiation in hair follicles.

This action helps to maintain and stimulate hair growth, particularly in areas affected by androgenetic alopecia. Clinical studies have consistently shown that topical Minoxidil can significantly increase hair density and reduce hair shedding when used consistently over several months.

As with any medication, individual responses to Minoxidil can vary, and it is essential for users to follow prescribed guidelines and consult healthcare professionals to ensure optimal results. While not a cure for hair loss, Minoxidil remains a cornerstone treatment, offering hope and tangible results for many experiencing hair thinning and loss.

Mechanisms of Action

Minoxidil is widely recognized for its role in treating hair loss, but its mechanisms of action are complex and multifaceted. At its core, Minoxidil is a vasodilator, originally used to treat hypertension by relaxing blood vessels and improving blood flow.

This vasodilatory effect is crucial for its secondary use in promoting hair growth. By increasing blood flow to the scalp, Minoxidil enhances the delivery of oxygen, nutrients, and growth factors to hair follicles, creating a more favorable environment for hair growth.

A critical aspect of Minoxidil’s function is its influence on potassium channels in cells. Minoxidil is believed to open ATP-sensitive potassium channels in hair follicle cells. This action promotes cell membrane hyperpolarization, which in turn stimulates cell proliferation and differentiation.

hair follicle growth phases

Essentially, by affecting potassium channels, Minoxidil prolongs the anagen phase (growth phase) of the hair cycle and delays the onset of the telogen phase (resting phase), leading to increased hair growth and density.

The opening of potassium channels by Minoxidil enhances the survival and function of hair follicle cells, which is vital for maintaining a healthy hair growth cycle. These channels play a significant role in cellular signaling and metabolism, and their activation helps to create a cellular environment conducive to hair growth.

By improving the function and longevity of hair follicles, Minoxidil helps to counteract the miniaturization process characteristic of androgenetic alopecia, where hair follicles shrink and produce thinner, shorter hairs over time.

In summary, Minoxidil’s effectiveness in treating hair loss is primarily due to its vasodilatory properties and its ability to modulate potassium channels. By improving blood flow to the scalp and enhancing the cellular environment within hair follicles, Minoxidil stimulates hair growth and helps to maintain the health and vitality of hair.

This dual mechanism makes it a cornerstone treatment for many individuals experiencing hair thinning and loss.

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Forms of Minoxidil for Hair Loss

Hair loss treatments have evolved to offer various forms of Minoxidil, each catering to different needs and preferences. From topical solutions and foams to oral medications, Minoxidil provides versatile options for those seeking to restore their hair.

Understanding the differences between these forms can help users choose the most suitable treatment for their specific condition.

1. Topical Minoxidil for Hair Loss

Minoxidil, widely used for hair loss treatment, comes in various forms to cater to different needs and preferences. The most common form is topical Minoxidil, available as a liquid solution or foam. Applied directly to the scalp, typically twice daily, it works by increasing blood flow to the hair follicles and prolonging the anagen (growth) phase of the hair cycle3.

2. Minoxidil Foam for Sensitive Scalps

The foam formulation of Minoxidil, often preferred by users with sensitive scalps, is less likely to cause irritation compared to the liquid form. Both versions are effective, with the choice between them typically determined by user preference.

3. Oral Minoxidil

Oral Minoxidil, initially developed and approved as a treatment for severe hypertension, was found to promote hair growth as a side effect during hypertension treatment. In recent years, low-dose oral Minoxidil has gained attention for its potential in treating hair loss, particularly for patients who do not respond well to topical treatments.

Taken in pill form, oral Minoxidil can be effective but carries a higher risk of systemic side effects such as fluid retention, increased heart rate, and unwanted hair growth on other parts of the body. Therefore, it requires careful monitoring by a healthcare professional.

4. Minoxidil in Shampoos and Custom-Compounded Topical Treatments

Additionally, Minoxidil is sometimes incorporated into other formulations, such as shampoos or combined with other active ingredients in custom-compounded topical treatments. These alternatives aim to enhance convenience and effectiveness, although their efficacy may vary compared to standard topical or oral forms.

Step-by-Step Guide: How To Use Minoxidil for Hair Loss

minoxidil being applied
Step 1: Prepare Your Scalp
Before applying Minoxidil, it is essential to ensure that your scalp is clean and dry. A clean scalp allows for better absorption of the product, maximizing its effectiveness. Begin by parting your hair to expose the areas experiencing thinning or hair loss. This step is crucial as it ensures that the Minoxidil is applied directly to the scalp where it can stimulate the hair follicles.
Step 2: Apply Topical Minoxidil (Liquid Solution)
When using the liquid solution form of Minoxidil, use the provided dropper to measure and apply 1 millilitre of the solution directly to the scalp. Focus on the areas that are thinning or where hair loss is most noticeable. Gently massage the solution into the scalp with your fingertips to ensure even distribution. Massaging helps the solution penetrate the scalp more effectively, increasing its potential to stimulate hair growth.
Step 3: Apply Minoxidil Foam

For those using the foam formulation, dispense half a capful of foam onto your fingers. Spread the foam over the affected areas of the scalp. The foam formulation is often preferred by users with sensitive skin as it is less likely to cause irritation.

After applying the foam, allow it to dry completely before styling your hair or going to bed. This ensures that the product remains on the scalp long enough to be effective.

Step 4: Maintain Consistent Application
Consistency is key when using Minoxidil. The recommended dosage for topical Minoxidil is typically twice daily, once in the morning and once in the evening. Regular application helps maintain the increased blood flow and stimulation of hair follicles necessary for hair growth. Skipping doses or using the product sporadically can reduce its effectiveness and delay progress.
Step 5: Avoid Skipping Doses

To achieve the best results, it is important not to skip doses. Using Minoxidil regularly helps maintain the treatment’s effectiveness. Irregular use can interrupt the hair growth cycle and diminish the product’s benefits.

Maintaining a routine ensures that the hair follicles receive continuous stimulation, which is essential for hair regrowth.

Step 6: Using Oral Minoxidil

If you are prescribed oral Minoxidil, it is crucial to follow the dosage and instructions provided by your healthcare provider. Oral Minoxidil is usually started at a low dose to minimize potential side effects.

Taking the medication at the same time each day helps maintain steady levels in your system, which is important for the treatment’s effectiveness. Monitoring by a healthcare professional ensures safe and effective use.

Step 7: Establish a Routine

Hair growth is a gradual process, and it can take several months of regular Minoxidil use before significant improvements are noticeable. Interruptions in the treatment can lead to a reversal of gains and a return to the original hair loss pattern.

Establishing a routine, setting reminders, or incorporating the application into your daily habits can help maintain consistency. Consistent application is essential for achieving and maintaining the desired results.

By following these steps and maintaining a regular application schedule, you can maximize the effectiveness of Minoxidil in treating hair loss and achieve better results over time.

Efficacy

Clinical studies have extensively examined the efficacy of Minoxidil in treating hair loss, consistently demonstrating its positive impact. Research findings indicate that Minoxidil effectively promotes hair growth and reduces hair shedding, particularly in individuals with androgenetic alopecia.

In a series of double-blind, placebo-controlled trials, a significant proportion of participants using Minoxidil showed measurable improvements in hair count and density compared to those using a placebo2.

Approximately 60-70% of users experience positive results with Minoxidil, with variations based on factors such as the degree and duration of hair loss, as well as individual response to the treatment.

It’s worth noting that while not every user will achieve the same level of regrowth, most see some degree of improvement, whether in slowing hair loss, increasing hair thickness, or promoting new growth.

The timeframe for noticing visible effects with Minoxidil can vary. Typically, users may begin to see initial signs of improvement within 2-4 months of consistent use. However, significant and noticeable changes often require 6-12 months of regular application.

This gradual progression underscores the importance of patience and adherence to the prescribed regimen. Consistency in application is crucial to achieving and maintaining results. Interruptions in treatment can lead to a regression of gains, returning to the pre-treatment state of hair loss.

Therefore, users are encouraged to incorporate Minoxidil into their daily routine and remain committed to long-term use for sustained benefits.

In summary, clinical evidence supports the efficacy of Minoxidil for hair loss, with a substantial percentage of users experiencing beneficial outcomes.

While individual responses can vary, adhering to a consistent application schedule is key to maximizing the potential of this treatment and achieving the desired hair growth results. Consulting with healthcare professionals can further optimize treatment plans and address any concerns during the process.

Find the Right Hair Loss Treatment for You

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Side Effects of Minodixil

When considering the use of Minoxidil for hair loss treatment, it’s essential to be aware of potential side effects, both common and rare. Among the more common side effects reported by users are scalp irritation, itching, and dryness.

These effects typically occur early in treatment and may diminish over time as the scalp adjusts to the medication. In some cases, users may experience increased hair shedding initially, which is often temporary and resolves as new hair growth begins4.

Less common but more serious side effects include allergic reactions such as rash, swelling, or severe dizziness. Although rare, systemic absorption of Minoxidil can lead to unwanted effects such as rapid heartbeat, fainting, or unwanted hair growth on other parts of the body. These symptoms warrant immediate medical attention if they occur.

Given the potential for side effects, consulting a healthcare provider before starting Minoxidil is crucial. A healthcare professional can evaluate your medical history, assess the severity of your hair loss, and recommend the appropriate formulation and dosage.

They can also provide guidance on managing potential side effects and monitor your response to treatment over time.

This proactive approach ensures that Minoxidil is used safely and effectively, minimizing the risk of adverse reactions while maximizing the potential for positive outcomes in hair growth.

Regular follow-up appointments with your healthcare provider are also recommended to monitor progress and adjust treatment as needed.

Staying informed and working closely with a healthcare team, individuals can make informed decisions about Minoxidil use and maintain confidence in their hair loss treatment journey.

Minodixil vs Other Hair Loss Treatments

When exploring hair loss treatments, it’s essential to understand the different options available, their benefits, and potential drawbacks. This comparison will help clarify how various treatments like Minoxidil, Finasteride, Low-Level Laser Therapy (LLLT), Platelet-Rich Plasma (PRP) injections, and hair transplant surgery differ in terms of application, effectiveness, and considerations.

Comparison of Hair Loss Treatments
Treatment Application Method Benefits Considerations
Minoxidil Topical solution Promotes hair growth by stimulating follicles and improving blood flow. Easy to use and available over-the-counter. Non-prescription option, easy to access, various formulations.
Finasteride Oral medication Highly effective for male pattern hair loss. Works by inhibiting DHT, a hormone linked to hair follicle miniaturization. Requires a prescription, potential side effects such as sexual dysfunction.
Low-Level Laser Therapy (LLLT) Light energy devices Stimulates hair follicles using light energy. Requires multiple sessions, effectiveness varies per individual.
Platelet-Rich Plasma (PRP) Injections Injections into the scalp Uses patient's own platelets to promote hair growth. Requires multiple sessions, effectiveness varies, adherence to treatment schedule needed.
Hair Transplant Surgery Surgical procedure Offers a permanent solution for advanced hair loss. Provides natural-looking results. Invasive, involves downtime, higher cost compared to topical treatments.
Factors to Consider

Choosing the right hair loss treatment requires a thorough understanding of each option’s pros and cons. A healthcare provider can offer personalized recommendations to achieve the best results.

Who Can Use Minoxidil

minoxidil being applied woman

Minoxidil is suitable for both men and women experiencing hair loss, particularly due to androgenetic alopecia, the most common form of hair loss in both sexes. It is available in different formulations and strengths tailored for various needs and sensitivities, making it accessible for a broad range of individuals seeking to address hair thinning and baldness.

Age considerations are important when using Minoxidil. While there is no strict age limit, it is typically recommended for adults experiencing hair loss. Use in younger individuals should be carefully considered and monitored under medical supervision.

The safety and efficacy of Minoxidil in children have not been extensively studied, so its use in pediatric populations is generally discouraged unless prescribed by a healthcare professional for specific medical reasons.

Certain contraindications exist for using Minoxidil. Individuals with a history of hypersensitivity or allergic reactions to the medication should avoid its use. Additionally, those with scalp conditions such as psoriasis or eczema may need to consult with a dermatologist before starting treatment, as Minoxidil may exacerbate these conditions.

Pregnant or breastfeeding women should also exercise caution, as the safety of Minoxidil during pregnancy and lactation has not been conclusively established. While topical Minoxidil is minimally absorbed into the bloodstream, potential risks to the fetus or nursing infant cannot be entirely ruled out.

Ultimately, consulting with a healthcare provider is crucial before starting Minoxidil treatment. They can assess individual suitability based on medical history, current medications, and specific hair loss patterns. This personalized approach ensures that Minoxidil is used safely and effectively, maximizing its potential benefits while minimizing any potential risks or adverse effects.

Practical Tips

Integrating Minoxidil into a daily routine effectively can optimize its benefits for hair growth. Consistency is key: establish a routine where Minoxidil application becomes a habitual part of your morning and evening regimen. Choose a time that aligns with your daily activities to ensure you don’t forget or skip applications.

When applying Minoxidil, ensure your scalp is clean and dry to enhance absorption. Part your hair to expose the areas of thinning or baldness, and apply the recommended amount evenly. Gently massage the solution into your scalp using your fingertips to promote circulation and distribution of the medication.

To maximize results, it’s crucial to continue using Minoxidil as directed, even if initial improvements are subtle or take time to become noticeable. Hair growth is a gradual process, and consistent application over several months is often necessary to see significant changes in hair density and thickness.

In addition to regular application, maintaining a healthy lifestyle can support the efficacy of Minoxidil. A balanced diet rich in vitamins and minerals essential for hair health, adequate hydration, and stress management can all contribute to optimal hair growth.

Monitoring progress is also important. Keep track of changes in hair density, texture, and shedding patterns over time to gauge the effectiveness of Minoxidil. If you have concerns or notice unexpected changes, consult your healthcare provider for guidance and adjustments to your treatment plan.

By integrating these practical tips into your daily routine and maintaining consistency with Minoxidil application, you can enhance the likelihood of achieving and maintaining noticeable improvements in hair growth, supporting overall hair health and confidence.

Find the Right Hair Loss Treatment for You

Download the Hair Back App and discover a variety of hair loss solutions tailored to your needs.

Minoxidil Cost and Accessibility

Minoxidil’s cost and accessibility can vary significantly depending on several factors, including formulation strength, brand, and regional pricing. Generally, generic versions of Minoxidil are more affordable than branded counterparts, with prices typically ranging from $10 to $40 USD for a one-month supply of topical solutions or foams.

Higher-strength formulations, such as 5% Minoxidil for men, might be priced at the higher end of this spectrum. Prices can fluctuate based on the retailer and any ongoing promotions or discounts. Accessibility of Minoxidil also differs based on its strength and regulatory status.

Lower-strength formulations (typically 2% for women and 5% for men) are available over-the-counter without needing a prescription. This accessibility allows individuals experiencing mild to moderate hair loss to purchase Minoxidil from local pharmacies, supermarkets, or online platforms without medical intervention. The convenience of over-the-counter availability simplifies initial access and ongoing management for many users.

In contrast, higher-strength Minoxidil formulations, such as those exceeding 5%, often require a prescription from a healthcare provider. These stronger formulations may be recommended for individuals with more advanced hair loss or those who have not responded sufficiently to lower-strength options.

Obtaining prescription-strength Minoxidil involves consultation with a healthcare professional to assess suitability, determine the appropriate concentration, and monitor for potential side effects.

Navigating Minoxidil’s cost and accessibility involves considering individual hair loss severity, treatment preferences, and budget constraints. Consulting with a healthcare provider ensures informed decision-making regarding Minoxidil use, optimizing its affordability and effectiveness in addressing hair loss concerns.

This approach fosters a balanced approach to managing hair health, promoting confidence and satisfaction with treatment outcomes.

Conclusion

Dealing with hair loss can be challenging, but Minoxidil offers a reliable and versatile solution, especially for those battling androgenetic alopecia. It works by enhancing blood flow to the scalp and stimulating hair follicles, which can significantly improve hair growth and density.

Clinical studies back its effectiveness, showing promising results for many users. Incorporating Minoxidil into your daily routine, whether as a topical application or a prescription-strength oral medication, requires dedication and patience.

The key to success with Minoxidil is consistency. Over-the-counter options are available for milder cases, but higher-strength formulations need medical supervision to ensure safe use. Costs can vary depending on the formulation and brand, so finding the right option for your budget is essential.

It’s crucial to consult with a healthcare provider to navigate the best treatment options tailored to your specific needs. By sticking to the prescribed regimen and regularly monitoring your progress, you can make the most of Minoxidil’s potential.

This approach not only helps in maintaining and enhancing hair health but also boosts confidence as you address hair loss concerns. Remember, you’re not alone in this journey, and with the right treatment, you can achieve the results you desire.

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FAQs

Yes, Minoxidil can be used in conjunction with other hair loss treatments. It is often combined with medications like Finasteride or procedures such as low-level laser therapy (LLLT) or platelet-rich plasma (PRP) injections to enhance overall hair restoration results. However, it’s essential to consult with a healthcare provider to ensure compatibility and optimize treatment effectiveness.

If Minoxidil use is discontinued, any new hair growth stimulated by the treatment may gradually diminish over time. This is because Minoxidil’s effects on hair follicles are temporary and require ongoing application to maintain results. Hair loss patterns may revert to their pre-treatment state, leading to resumed thinning or balding.

It’s recommended to adhere to the prescribed regimen for sustained benefits and consult with a healthcare professional before making any changes to your treatment plan.

Minoxidil works by dilating blood vessels in the scalp, increasing blood flow to hair follicles. This stimulation extends the growth phase of hair and revitalizes dormant follicles, promoting thicker hair growth.

Visible results vary, but it generally takes 2-4 months of consistent use to notice initial improvements in hair density and thickness. Full effects may take 6-12 months.
Yes, some users may experience increased shedding initially, known as “shedding phase,” which is temporary and indicates that Minoxidil is stimulating new hair growth.
Common side effects include scalp irritation, itching, and dryness. Rare but more serious side effects can include allergic reactions or unwanted hair growth in other body areas.
Minoxidil is primarily effective for androgenetic alopecia (pattern baldness), which is the most common type of hair loss in both men and women. It may have limited effectiveness for other types of hair loss.
Yes, Minoxidil is FDA-approved for use by both men and women. Different strengths are available to suit gender-specific needs.
Safety during pregnancy and breastfeeding is not fully established, so it’s recommended to consult a healthcare provider before use in these circumstances.
If a dose is missed, resume regular application at the next scheduled time. Avoid doubling doses to compensate for a missed application.
While topical Minoxidil is generally well-tolerated, there is a potential risk of systemic absorption leading to side effects like rapid heartbeat or fluid retention, especially with higher concentrations.

Minoxidil should be applied to a clean, dry scalp. Wait at least 4 hours after applying before using styling products or coloring hair to ensure proper absorption.

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Janna Strong

Janna Strong is a highly experienced dermatologist with over 15 years in the field. She has consulted for more than 500 individuals globally, offering expert advice and treatments. Her extensive experience and commitment to patient care make her a trusted authority in dermatology.

References

  1. Olsen EA, Dunlap FE, Funicella T, et al. 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. 2002.
  2. Lucky AW, Piacquadio DJ, Ditre CM, et al. A randomized, placebo-controlled trial of 5% and 2% topical minoxidil solutions in the treatment of female pattern hair loss. Journal of the American Academy of Dermatology. 2004.
  3. Trancik RJ, Yagoda A, Grabstald H. Systemic absorption of topically applied minoxidil. Cancer Research. 1972.
  4. Blume-Peytavi U, Hillmann K, Dietz E, et al. A randomized, single-blind trial of 5% minoxidil foam once daily versus 2% minoxidil solution twice daily in the treatment of androgenetic alopecia in women. Journal of the American Academy of Dermatology. 2011.
  5. Gupta AK, Charrette A. Topical minoxidil: Systematic review and meta-analysis of its efficacy in androgenetic alopecia. Dermatology and Therapy. 2019.
  6. Messenger AG, Rundegren J. Minoxidil: mechanisms of action on hair growth. British Journal of Dermatology. 2004.
  7. Fiedler-Weiss VC. Topical minoxidil solution (1% and 5%) in the treatment of alopecia areata. Journal of the American Academy of Dermatology. 1987.
  8. Shapiro J, Price VH. Hair regrowth. Therapeutic agents. Dermatologic Clinics. 1998.
  9. Kaufman KD, Olsen EA, Whiting D, et al. Finasteride in the treatment of men with androgenetic alopecia. Journal of the American Academy of Dermatology. 1998.
  10. Cash TF, Price VH, Savin RC. Psychosocial effects of androgenetic alopecia on women: comparisons with balding men and with female control subjects. Journal of the American Academy of Dermatology. 1993.
  11. Sinclair RD., (2018), Female pattern hair loss: a pilot study investigating combination therapy with low-dose oral minoxidil and spironolactone. Int J Dermatol. 2018 Jan;57(1):104-109.
  12. Mazen, Al zo’ubi MD, (2017), Topical Minoxidil 5% Induced Male Sexual Dysfunction. Indian Journal of Medical Research and Pharmaceutical Sciences, May 2017;4(5).
  13. Ulrike Blume-Peytavi MD, PhD, Kathrin Hillmann MD, et al, (2011), A randomized, single-blind trial of 5% minoxidil foam once daily versus 2% minoxidil solution twice daily in the treatment of androgenetic alopecia in women. Journal of the American Academy of Dermatology, Volume 65, Issue 6, December 2011, Pages 1126-1134.e2.
  14. Asad, U., Boothe, D., & Tarbox, M. (2019). Effect of topical dermatologic medications in humans on household pets. Proceedings (Baylor University. Medical Center), 33(1), 131–132.
  15. Tosti A, Piraccini BM, Soli M. Evaluation of sexual function in subjects taking finasteride for the treatment of androgenetic alopecia. Journal of the European Academy of Dermatology and Venereology. 2001.
  16. Vexiau P, Chaspoux C, Boudou P, et al. Effects of minoxidil 2% vs. cyproterone acetate treatment on female androgenetic alopecia: a controlled, 12-month randomized trial. British Journal of Dermatology. 2002.
  17. Price VH, Menefee E, Strauss PC. Changes in hair weight and hair count in men with androgenetic alopecia, after application of 5% and 2% topical minoxidil, placebo, or no treatment. Journal of the American Academy of Dermatology. 1999.
  18. Rogers NE, Avram MR. Medical treatments for male and female pattern hair loss. Journal of the American Academy of Dermatology. 2008.