The conclusion is that hair supplement ingredients may be unsafe and should be disclosed and proven safe before use.
July 2021 in “Belarusian State Pedagogical University repository (Belarusian State Pedagogical University)” PMC shows promise as a treatment for hair loss.
42 citations
,
December 2007 in “American Journal of Psychiatry” Finasteride may effectively reduce Tourette's syndrome symptoms and improve life quality.
36 citations
,
October 2009 in “Journal of Investigative Dermatology” Dihydrotestosterone can be made from dehydroepiandrosterone in skin cells without needing testosterone.
6 citations
,
September 2012 in “Clinical Interventions in Aging” Honokiol might help reduce male skin aging by maintaining testosterone levels.
2 citations
,
February 2004 in “Biopolymers” 4-(4-Phenoxybenzoyl)benzoic acid derivatives can both increase and decrease certain types of reactive oxygen species, and may be relevant to hair loss.
July 2025 in “Reproductive Biology and Endocrinology” Early androgen exposure affects hormone receptor expression in adult female rats' brains, but not in males.
November 2023 in “Plants” Compounds from Jatropha cordata bark have significant anti-inflammatory effects and could help with hair loss.
November 2022 in “Medicina Estética Revista Científica de la Sociedad Española de Medicina Estética (SEME)” The conditioner with Serenoa serrulata and tocoferol helps reduce hair loss.
3 citations
,
August 1996 in “PubMed” Finasteride reduces prostate size and serum levels, helping manage benign prostatic hyperplasia, without affecting prostate cancer detection. Regular monitoring is needed for users.
Blocking 5α-reductase can reduce sleep deprivation-related behavioral issues in rats.
December 2024 in “Research Journal of Pharmacy and Technology” Seablite root extract may help prevent hair loss and promote hair growth.
April 2026 in “Journal of the Korean Society of Cosmetology” Limosilactobacillus reuteri from honeybees may promote hair growth by activating a specific cell pathway.
November 2025 in “Zenodo (CERN European Organization for Nuclear Research)” Saw Palmetto, especially with Lycopene, L-Arginine, and Astaxanthin, improves male health by balancing hormones and boosting energy.
November 2025 in “Zenodo (CERN European Organization for Nuclear Research)” Saw Palmetto, combined with Lycopene, L-Arginine, and Astaxanthin, improves male health by balancing hormones, reducing inflammation, and enhancing hair and urinary health without side effects.
January 2023 in “Revista Ibero-Americana de Humanidades, Ciências e Educação” Combining Finasteride and Minoxidil effectively treats hair loss in middle-aged men.
August 2021 in “Journal of The American Academy of Dermatology” Finasteride treatment changes hormone levels in male pattern baldness patients.
14 citations
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November 2008 in “Expert opinion on drug metabolism & toxicology” Finasteride helps treat prostate issues and may prevent prostate cancer in high-risk men.
3 citations
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March 2016 in “Phytotherapy Research” The new compound was more effective than finasteride in reducing markers of hair loss and prostate issues in cell tests.
March 2026 in “Revista Ibero-Americana de Humanidades, Ciências e Educação” Using dutasteride during hair transplants improves results and reduces hair loss.
May 2024 in “Brazilian Journal of Hair Health” Finasteride and dutasteride may help prevent hair loss but could cause side effects like sexual dysfunction and psychological issues.
Dutasteride is more effective and better tolerated than finasteride for hair loss treatment.
153 citations
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October 2012 in “Skin Pharmacology and Physiology” Caffeine in cosmetics may reduce cellulite, protect skin, and stimulate hair growth, but more research is needed on its use and effects.
2 citations
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January 2019 in “Biomedical Journal of Scientific and Technical Research” Saw palmetto in hair products might reduce hair loss but can cause side effects.
November 2022 in “Journal of Herbal Medicine” Certain compounds found in edible mushrooms may help treat hair loss.
5 citations
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September 2011 in “Andrologia” Finasteride use may be linked to rare testicular tumor, but more research needed.
November 2024 in “Clinical Cosmetic and Investigational Dermatology” Rosemary oil may effectively treat hair loss with fewer side effects, but more research is needed.
Women with a certain type of hair loss have more copper in the back of their head than the front, and treatment can normalize hair but not copper levels.
6 citations
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February 1996 in “Clinical Pharmacology & Therapeutics” Scale created to measure hair loss in men and women; MK-386 reduces acne; Niaspan treats dyslipidemia; minoxidil increases heart rate.
August 2016 in “Journal of Investigative Dermatology” Dutasteride improved hair density and thickness in men not helped by finasteride, with minimal side effects.