Beyond Minoxidil: Off-Label Therapies for Male Androgenetic Alopecia—A Systematic Review with Network Meta-Analyses

July 2026 in “ Medicina ”

Aditya K. Gupta, Shannon A. H. Compton, Amanda Liddy, Mesbah Talukder, Tong Wang, Mary A. Bamimore

minoxidil androgenetic alopecia melatonin diaminopyrimidine oxide procyanidin saw palmetto cetirizine finasteride Rogaine AGA Propecia

TLDR Topical minoxidil 5% is the most effective treatment for male hair loss, but other therapies show promise.

This systematic review and network meta-analysis evaluated off-label therapies for male androgenetic alopecia (AGA), comparing them to topical minoxidil. The study analyzed 23 studies, finding that topical minoxidil 5% was the most effective treatment. Promising off-label therapies included topical melatonin, diaminopyrimidine oxide, procyanidin, saw palmetto, cetirizine, and topical finasteride, each showing potential clinical benefits. The review highlighted the need for further high-quality trials due to incomplete reporting and limited studies for some interventions. Overall, these therapies offer potential alternatives for AGA treatment, with varying efficacy and safety profiles.

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Promises and Pitfalls of Regenerative Therapies for Androgenetic Alopecia: Platelet-Rich Plasma, Photobiomodulation, Stem Cells, and Exosomes

research Promises and Pitfalls of Regenerative Therapies for Androgenetic Alopecia: Platelet-Rich Plasma, Photobiomodulation, Stem Cells, and Exosomes

December 2025 in “Medical Sciences”

Regenerative therapies show promise for hair regrowth, but more research and standardization are needed.

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December 2025 in “Journal of Dermatological Treatment”

GT20029 helps regrow hair in men with hair loss and is well-tolerated.

research Exosomes in Trichology: A Literature Review

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Exosome therapy could help with hair loss, but more research and regulation are needed.

research Androgenetic Alopecia

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May 2025 in “Actas Dermo-Sifiliográficas”

Botulinum toxin is not effective for treating androgenetic alopecia.

research Recent Advances in Drug Development for Hair Loss

April 2025 in “International Journal of Molecular Sciences”

New treatments for hair loss show promise with advanced therapies and better targeting.

A Pilot Randomized Controlled Trial Evaluating the Efficacy of an Exosome-Containing Plant Extract Formulation for Treating Male Alopecia

research A Pilot Randomized Controlled Trial Evaluating the Efficacy of an Exosome-Containing Plant Extract Formulation for Treating Male Alopecia

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The plant extract helped increase hair growth in men without severe side effects.

research 52243 AH-001: An Emerging Androgen Receptor Degrader Showing Therapeutic Potential in Addressing Androgenetic Alopecia

September 2024 in “Journal of the American Academy of Dermatology”

AH-001 could be a safer and more effective treatment for hair loss.

research Efficacy of Botulinum Toxin in Male Androgenetic Alopecia: A Triple-Blind, Randomized Clinical Trial

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Botulinum toxin may help treat male pattern baldness.

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research A Phase I, Open-Label, Sequential, Single-Dose Clinical Trial to Evaluate the Pharmacokinetics, Pharmacodynamics, and Safety of IVL3001, a Finasteride-Based Novel Long-Acting Injection for Androgenetic Alopecia

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IVL3001 is safe, effective, and better than oral finasteride for treating hair loss.

Efficacy of Topical Minoxidil and Finasteride Association Compared to Monotherapy in Men With Androgenetic Alopecia: A Prospective, Randomized, Controlled, Assessor-Blinded, 3-Arm, Pilot Trial

research Efficacy of Topical Minoxidil and Finasteride Association Compared to Monotherapy in Men With Androgenetic Alopecia: A Prospective, Randomized, Controlled, Assessor-Blinded, 3-Arm, Pilot Trial

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Using both minoxidil and finasteride together is more effective for hair growth than using either one alone in men with hair loss.

research Botulinum Toxin A for Hair Loss Treatment: A Systematic Review of Efficacy, Safety, and Future Directions

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Botulinum Toxin A may help with hair growth and has some side effects; more research is needed.

research Androgenetic Alopecia: Therapy Update

May 2023 in “Drugs”

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research Effects of Watercress Extract Fraction on R-Spondin 1-Mediated Growth of Human Hair

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Watercress extract helps increase hair growth and thickness by blocking hair loss factors.

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Topical finasteride is an effective and safer treatment for male hair loss.

research Minoxidil: A Comprehensive Review

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Minoxidil effectively treats hair loss, especially androgenetic alopecia, but needs more research for better understanding.

research Efficacy of Cetirizine 1% Versus Minoxidil 5% Topical Solution in the Treatment of Male Alopecia: A Randomized, Single-Blind Controlled Study

7 citations , April 2021 in “Journal of Pharmacy and Pharmaceutical Sciences”

Cetirizine 1% helps hair growth in men with no major side effects, but minoxidil 5% works better.

research A Scoping Review of Pharmacotherapy, Complementary, and Alternative Medicine, and Surgical Therapies for Androgenic Alopecia

1 citations , March 2021 in “Current Dermatology Reports”

Various treatments help hair growth, but more research needed for safety and effectiveness.

Efficacy of Non-Surgical Treatments for Androgenetic Alopecia in Men and Women: A Systematic Review with Network Meta-Analyses and an Assessment of Evidence Quality

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Minoxidil and finasteride work best for hair loss; more research needed.

research Comparison of Efficacy of Platelet-Rich Plasma Therapy With or Without Topical 5% Minoxidil in Male-Type Baldness: A Randomized, Double-Blind Placebo Control Trial

26 citations , December 2019 in “Indian Journal of Dermatology, Venereology and Leprology”

PRP combined with minoxidil is the most effective and safe treatment for male pattern baldness.

A 6-Month, Randomized, Double-Blind, Placebo-Controlled Study Evaluating the Ability of a Marine Complex Supplement to Promote Hair Growth in Men with Thinning Hair

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The marine complex supplement significantly improved hair growth in men with thinning hair without adverse effects.

research Treatment of Male Androgenetic Alopecia with Topical Products Containing Serenoa Repens Extract

18 citations , May 2015 in “Australasian Journal of Dermatology”

Serenoa repens extract in topical products improves hair growth and appearance in male pattern baldness with mild side-effects.

Preparation and Evaluation of a Multimodal Minoxidil Microemulsion Versus Minoxidil Alone in the Treatment of Androgenic Alopecia of Mixed Etiology: A Pilot Study

research Preparation and Evaluation of a Multimodal Minoxidil Microemulsion Versus Minoxidil Alone in the Treatment of Androgenic Alopecia of Mixed Etiology: A Pilot Study

24 citations , May 2013 in “Drug Design Development and Therapy”

Multimodal minoxidil microemulsion is more effective in treating hair loss than minoxidil alone.

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51 citations , October 2012 in “International Journal of Immunopathology and Pharmacology”

Finasteride works better than Serenoa repens for male hair loss.

research Topical Melatonin for Treatment of Androgenetic Alopecia

39 citations , January 2012 in “International Journal of Trichology”

Melatonin solution helps treat hair loss in men and women.

research Procyanidin Oligomers Counteract TGF-β1- and TGF-β2-Induced Apoptosis in Hair Epithelial Cells: An Insight into Their Mechanisms

14 citations , January 2006 in “Skin pharmacology and physiology”

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Investigation of the Topical Application of Procyanidin Oligomers from Apples to Identify Their Potential Use as a Hair-Growing Agent

research Investigation of the Topical Application of Procyanidin Oligomers from Apples to Identify Their Potential Use as a Hair-Growing Agent

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Apple procyanidin applied to the scalp may help grow hair without side effects.

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65 citations , April 2002 in “Journal of Alternative and Complementary Medicine”

Plant extracts effectively reduce hair loss and increase growth, offering a safe alternative treatment.

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32 citations , December 2000 in “Phytomedicine”

Apple-derived procyanidin B-2 can safely promote hair growth in men.

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31 citations , January 1989 in “Clinical and Experimental Dermatology”

The study tested a hair treatment and found it can help grow hair, but won't stop baldness. It's safe and works well, but needs more testing.

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Minoxidil is safe and effectively increases hair growth in early male pattern baldness.

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17 citations , July 1988 in “International Journal of Dermatology”

The 2% minoxidil solution is safe and effective for early male pattern baldness.

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11 citations , July 1988 in “International Journal of Dermatology”

The study found that using 2% minoxidil solution can help grow hair and is safe.

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58 citations , July 1986 in “Journal of The American Academy of Dermatology”

Lowest effective minoxidil concentration is 1%, but 2% works better for male pattern baldness.