Trends and Techniques: A Statistical Review of Hair Care Product Evaluation Research

    August 2025 in “ International Journal of Research in Dermatology ”
    Maheshvari Patel, Nayan Patel, Rutuja Patil, S. S. Shrivastava
    Studysummary This review systematically analyzed 22 clinical trials on hair care, finding that while most studies employed appropriate statistical methods, significant inconsistencies in reporting test assumptions and effect sizes may hinder reproducibility, highlighting a need for better standardization and transparency in these research practices.
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    Research cited in this study 25

    1. Therapeutic Potential of Gynostemma Pentaphyllum Extract for Hair Health Enhancement: A Randomized, Double-Blind, Placebo-Controlled Clinical Trial Nutrients · 2025
    2. Patient-Reported Outcome Improvements Following Scalp Hair Regrowth Among Patients With Alopecia Areata: Analysis of the ALLEGRO-2b/3 Trial Journal of Dermatological Treatment · 2025
    3. Comparative Study Between Fractional CO2 Laser Alone Versus Fractional CO2 Laser Combined With Topical Dutasteride in Treatment of Male Androgenic Alopecia Lasers in Medical Science · 2025
    4. A Clinical Evaluation of the Safety, Efficacy, and Tolerability of the Soulflower Rosemary Redensyl Hair Growth Serum, Tetragain, in Healthy Female Subjects for the Treatment of Alopecia: Promoting Hair Growth and Reducing Gray Hair Cureus · 2025
    5. A Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Safety and Efficacy of a Nutraceutical Supplement With Standardized Botanicals in Males With Thinning Hair Journal of Cosmetic Dermatology · 2025
    6. An Assessment of the Safety, Efficacy, and Tolerability of a Novel Scalp Treatment Regimen Combining a Hydroxy Acid-Based Scrub and Copper Tripeptide Serum in the Management of Seborrheic Dermatitis in Adults Cureus · 2024
    7. Randomized Clinical Trial to Evaluate the Effect of Probiotic Intake on Androgenic Alopecia Nutrients · 2024
    8. Efficacy of Type A Botulinum Toxin Treatment for Androgenetic Alopecia Using Ultrasound Combined with Trichoscopy Skin Research and Technology · 2024
    9. Comparative Efficacy of 2% Minoxidil Alone Versus Combination With Low-Level Laser Therapy in Female Pattern Hair Loss: A Randomized Controlled Trial in Chinese Females Photodiagnosis and Photodynamic Therapy · 2024
    10. Topical Sodium Valproate-Loaded Nanospanlastics Versus Conventional Topical Steroid Therapy in Alopecia Areata: A Randomized Controlled Study Archives of dermatological research · 2024
    11. A Clinical Investigation on the Safety and Effectiveness of an Ayurvedic Hair Oil in Controlling Hair Fall in Healthy Adult Human Subjects: A Study on Hair Fall Management International journal of research in dermatology · 2023
    12. Safety and Efficacy of Hair Growth Promoting Product in Adult Human Subjects With Alopecia Journal of Cosmetic Dermatology · 2023
    13. Oral and Topical Administration of Standardized Saw Palmetto Oil Reduces Hair Fall and Improves Hair Growth in Androgenetic Alopecia Subjects: A 16-Week Randomized, Placebo-Controlled Study Clinical, Cosmetic and Investigational Dermatology · 2023
    14. Efficacy and Safety of Persimmon Leaf Formulated With Green Tea and Sophora Fruit Extracts on Hair Growth: A Randomized, Double-Blind, Placebo-Controlled Clinical Trial Skin Research and Technology · 2023
    15. Combination of Adipose-Derived Stem Cell Conditioned Media and Minoxidil for Hair Regrowth in Male Androgenetic Alopecia: A Randomized, Double-Blind Clinical Trial Stem Cell Research & Therapy · 2023
    16. Biomolecules of Fermented Tropical Fruits and Fermenting Microbes as Regulators of Human Hair Loss, Hair Quality, and Scalp Microbiota Biomolecules · 2023
    17. Efficacy of Autologous Platelet-Rich Plasma Therapy Versus Topical Minoxidil in Men With Moderate Androgenetic Alopecia: A Randomized Open-Label Trial Journal of Dermatological Treatment · 2023
    18. Comparison Between Topical Cetirizine With Minoxidil Versus Topical Placebo With Minoxidil In Female Androgenetic Alopecia: A Randomized, Double-Blind, Placebo-Controlled Study Archives of Dermatological Research · 2022
    19. The Effects of Magnesium Supplementation on Abnormal Uterine Bleeding, Alopecia, Quality of Life, and Acne in Women With Polycystic Ovary Syndrome: A Randomized Clinical Trial Reproductive Biology and Endocrinology · 2022
    20. Weekly Treatment with SAMiRNA Targeting the Androgen Receptor Ameliorates Androgenetic Alopecia Scientific Reports · 2022
    21. Efficacy and Safety of Topical Finasteride Spray Solution for Male Androgenetic Alopecia: A Phase III, Randomized, Controlled Clinical Trial Journal of The European Academy of Dermatology and Venereology · 2021
    22. Setipiprant for Androgenetic Alopecia in Males: Results from a Randomized, Double-Blind, Placebo-Controlled Phase 2a Trial Clinical, Cosmetic and Investigational Dermatology · 2021
    23. Low-Level Light Therapy Using a Helmet-Type Device for the Treatment of Androgenetic Alopecia Medicine · 2020
    24. Migration Inhibitory Factor in Conditioned Medium from Human Umbilical Cord Blood-Derived Mesenchymal Stromal Cells Stimulates Hair Growth Cells · 2020
    25. A Randomized, Double-Blind, Vehicle-Controlled Clinical Study of Hair Regeneration Using Adipose-Derived Stem Cell Constituent Extract in Androgenetic Alopecia Stem Cells Translational Medicine · 2020