Minoxidil Vs Finasteride: Which Hair Loss Treatment Works Best?

Minoxidil Vs Finasteride: Which Hair Loss Treatment Works Best?

Hair loss is a reality that many people face throughout their lives. It can affect anyone regardless of age or gender and often carries with it emotional and social challenges. Losing hair may feel like a personal setback, but it is a natural part of the human experience. For some, thinning hair or receding hairlines are simply signs of ageing, while for others, the stress and self-consciousness that accompany hair loss can be overwhelming. Recognising that hair loss is common and understanding that many others share these struggles can be both comforting and empowering.

Many individuals seeking to halt or reverse hair loss have heard about treatments like minoxidil and finasteride. Both medications have garnered significant attention because they offer promising results by addressing different aspects of the hair growth cycle. Yet, the key question remains: which treatment works best? To answer this, it is important to understand how each medication works, their benefits, and their potential side effects.

Understanding hair loss

Hair loss, particularly androgenetic alopecia (commonly known as pattern hair loss), affects millions of people worldwide1. This condition is often linked to genetics and hormones, resulting in the gradual thinning of hair over time. Although the process is natural, many seek treatment to maintain their self-esteem and overall appearance. Factors such as stress, environmental influences, and even diet can play a role in accelerating hair loss.

While numerous treatment options exist, minoxidil and finasteride are two of the most widely used and well-researched therapies. Both are approved by the U.S. Food and Drug Administration (FDA) for treating certain types of hair loss, but they work in very different ways. Understanding these differences is essential for making an informed decision about which option might be best for your unique needs.

How minoxidil works

Minoxidil is a topical treatment originally developed as an antihypertensive medication. However, during clinical trials, researchers noticed an unexpected side effect: increased hair growth2. Today, minoxidil is typically available over the counter in liquid or foam formulations and is applied directly to the scalp. The drug acts as a vasodilator, widening blood vessels in the scalp and improving blood flow. This enhanced circulation increases the delivery of oxygen and nutrients to hair follicles, which may prolong the growth phase (anagen phase) of hair and promote thicker, fuller hair3.

Many users appreciate minoxidil for its ease of use and accessibility. It is effective for both men and women and is typically used twice a day. However, results can take several months to become noticeable, and continued use is important to maintain gains.

Minoxidil is also available as an oral drug which needs to be prescribed by your doctor or dermatologist. This usually has better results but certain side effects like headaches, palpitations, slight drop in blood pressure at higher dosages, and increased facial and body hair growth have to be considered or weighted in the decision-making process taking into account the patient’s other medical conditions and any contraindications. When either oral or topical minoxidil is discontinued, hair loss may resume, making it a long-term commitment for many individuals especially if the underlying cause of hair loss is a chronic problem like male or female pattern hair loss. This however may not be the case if minoxidil was actually started for other forms of hair loss like telogen effluvium or alopecia areata that can be resolved or go into remission.

How finasteride works

Finasteride, on the other hand, is an oral medication that works from within the body. It is primarily prescribed for male pattern hair loss and is known by its brand name Propecia, among others. Finasteride works by inhibiting the enzyme 5-alpha reductase, which is responsible for converting testosterone into dihydrotestosterone (DHT)4. Elevated levels of DHT are strongly linked to hair follicle miniaturisation – a process where hair follicles shrink over time, leading to thinner and shorter hair strands. By reducing DHT levels, finasteride helps slow down the progression of hair loss and can even promote regrowth in some men5.

Although finasteride is effective for many men, some users report side effects such as decreased libido or erectile dysfunction. These side effects are relatively rare and typically resolve after discontinuation of the medication4.

Some women with female pattern hair loss may also be suitable for the use of finasteride depending on their severity. This is an alternative drug to spironolactone but is relatively contraindicated in a woman of childbearing age and is more suitable for women who are post-menopausal or who have completed their family due to the possibility of causing birth defects in male fetuses if a woman inadvertently becomes pregnant whilst taking the drug.

Comparing effectiveness and side effects

When comparing minoxidil and finasteride, it is important to note that both treatments target hair loss through different mechanisms. Minoxidil primarily works by improving scalp circulation and prolonging the hair growth phase, whereas finasteride addresses the hormonal causes of hair loss by lowering DHT levels. Research6 suggests that while minoxidil is effective at stimulating hair growth and reducing hair fall, finasteride helps to reduce the miniaturisation of hair follicles caused by DHT.

Despite the promising outcomes associated with both treatments, potential side effects are an important consideration. Topical minoxidil’s side effects are generally localised to the area of application and can include scalp irritation, redness, and itching3. In some cases, unwanted hair growth in areas adjacent to the treatment site may occur. Oral minoxidil may cause initial headaches and palpitations when starting use, and may also cause unwanted peripheral hair growth over the face and body. Finasteride’s side effects, although less common, are systemic and may include sexual dysfunction and mood changes4. Because of these differences, the choice between these two treatments often depends on individual tolerance, medical history, and personal preferences.

Combining treatments for optimal results

Some studies have shown that using minoxidil and finasteride together can provide synergistic benefits. Combination therapy may help maximise hair regrowth while minimising the progression of hair loss. For example, one study7 reported that the combined use of topical minoxidil and oral finasteride resulted in improved hair density and overall satisfaction compared to using either medication alone. This approach can be particularly beneficial for individuals with moderate to severe hair loss who might require a more aggressive treatment regimen to target various aspects of the pathophysiology of hair loss.

For those interested in combination therapy, it is important to consult with a healthcare provider who can assess your overall health and help develop a personalised treatment plan. While combining the two treatments may offer enhanced results, ongoing monitoring is essential to manage any potential side effects and adjust dosages as needed.

Additional considerations

Beyond choosing between minoxidil and finasteride, other factors can influence your overall hair health. For example, maintaining a balanced diet, managing stress, and ensuring proper scalp care are all important elements of a comprehensive hair loss strategy. It is also useful to be aware of related dermatological treatments, such as acne and folliculitis treatment in Singapore, which can sometimes intersect with concerns about overall scalp and hair health.

Moreover, it is crucial not to overlook the impact of hormonal changes on hair health. This phrase, used here in passing, reminds us that shifts in hormone levels can play a significant role in the health and appearance of your hair without needing further elaboration.

Making an informed decision

Choosing the right hair loss treatment is a personal decision that depends on various factors, including the severity of your hair loss, your overall health, and your lifestyle. Minoxidil offers a non-hormonal, topical solution that is accessible and effective for many people, especially those who may prefer an over-the-counter option. Finasteride, by contrast, provides a targeted, hormone-based approach that has been shown to slow the progression of hair loss in men significantly.

It is also worth considering that treatment is not one-size-fits-all. Some individuals may find that minoxidil works best for them, while others may benefit more from finasteride or even a combination of both. Consultation with a dermatologist or hair restoration specialist is key to determining which treatment – or combination of treatments – is most appropriate for your specific situation.

A healthcare provider can help you weigh the benefits and drawbacks of each treatment option and monitor your progress over time. Regular check-ups and open communication with your provider can also help you manage any side effects that might arise and make adjustments to your treatment plan as necessary.

Conclusion

Hair loss may be an unavoidable part of life for many, but it does not have to define your self-image. Whether you choose minoxidil for its ease of use and localised action, finasteride for its hormonal benefits, or a combination of both, the goal is to find a solution that fits your individual needs and lifestyle. If you are looking for professional guidance and comprehensive hair restoration solutions, consider consulting Angeline Yong Dermatology. With expertise in cosmetic, surgical, and medical treatments, including skin cancer treatment in Singapore, our experienced team is ready to help you achieve healthier, fuller hair. Reach out today to learn more about how Dr Angeline Yong’s personalised approach can support your journey to restored confidence and improved hair health.

References

Qi, J., & Garza, L. A. (2014). An overview of alopecias. Cold Spring Harbor perspectives in medicine, 4(3), a013615. https://doi.org/10.1101/cshperspect.a013615

Hussein, R. S., Dayel, S. B., Abahussein, O., & El-Sherbiny, A. A. (2024). Applications and efficacy of minoxidil in dermatology. Skin health and disease, 4(6), e472. https://doi.org/10.1002/ski2.472

Patel, P., Nessel, T. A., & Kumar D, D. (2023). Minoxidil. In StatPearls. StatPearls Publishing.

Zito, P. M., Bistas, K. G., Patel, P., & Syed, K. (2024). Finasteride. In StatPearls. StatPearls Publishing.

Saraswat, A., & Kumar, B. (2003). Minoxidil vs finasteride in the treatment of men with androgenetic alopecia. Archives of dermatology, 139(9), 1219–1221. https://doi.org/10.1001/archderm.139.9.1219-b

Arca, E., Açikgöz, G., Taştan, H. B., Köse, O., & Kurumlu, Z. (2004). An open, randomized, comparative study of oral finasteride and 5% topical minoxidil in male androgenetic alopecia. Dermatology (Basel, Switzerland), 209(2), 117–125. https://doi.org/10.1159/000079595

Chen, L., Zhang, J., Wang, L., Wang, H., & Chen, B. (2020). The Efficacy and Safety of Finasteride Combined with Topical Minoxidil for Androgenetic Alopecia: A Systematic Review and Meta-analysis. Aesthetic plastic surgery, 44(3), 962–970. https://doi.org/10.1007/s00266-020-01621-5