August 2013 in “한국산업융합학회 논문집” Finasteride reduces certain hormone levels to treat prostate issues.
The estrogen receptor pathway controls hair growth cycles and affects skin cell growth.
January 2026 in “Frontiers in Cellular Neuroscience” Neurosteroids like neuro-estrogen and neuro-androgen are crucial for brain function and can improve cognition and protect against aging-related decline.
1 citations
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December 2005 in “Al-Mağallaẗ al-ʻirāqiyyaẗ li-l-ṣaydalaẗ” Melatonin reduced oxidative stress and might improve hair growth in alopecia areata patients.
4 citations
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January 1997 in “EXPERIMENTAL ANIMALS” Histamine and its enzyme may help start hair regrowth.
7 citations
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July 2019 in “International Journal of Molecular Sciences” PGA-4HGF may help treat hair loss by activating hair growth pathways and extending the hair growth phase.
3 citations
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February 2018 in “Experimental and Molecular Medicine/Experimental and molecular medicine” A protein called PCBP2 controls the production of a hair growth protein by interacting with its genetic message and is linked to hair loss when this control is disrupted.
1 citations
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September 2023 in “Journal of Investigative Dermatology” Melatonin may protect hair follicle cells from damage caused by a chemotherapy drug.
January 2012 in “CINECA IRIS Institutial Research Information System (University of Genoa)” Hair cortisol reliably indicates stress in rabbits.
July 2025 in “Advanced Science” Collagen VI and Semaphorin 3C are important for hair pigmentation and could help treat pigmentation disorders.
As people age, certain enzymes in scalp glands decrease, affecting hair health.
4 citations
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August 2023 in “Journal of Cosmetic Dermatology” Gynostemma pentaphyllum extract may help grow hair and prevent graying.
321 citations
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January 2012 in “Cell stem cell” TGF-β2 helps activate hair follicle stem cells by counteracting BMP signals.
January 2025 in “bioRxiv (Cold Spring Harbor Laboratory)” Rhamnose may help hair growth and pigmentation, making it a potential treatment for hair loss.
24 citations
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April 2006 in “Journal of the American Academy of Dermatology” Heat shock protein 27 is more present in the active growth phase of human scalp hair follicles.
July 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” Blocking mTORC1 activity with rapamycin could help increase hair pigmentation and growth, potentially reversing gray hair.
4 citations
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May 2022 in “BMC Women's Health” High levels of anti-Müllerian hormone can indicate polycystic ovarian syndrome in women who can have babies.
19 citations
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January 2019 in “Animals” PDGFA helps activate hair growth in cashmere goats.
28 citations
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November 2009 in “European Journal of Neuroscience” Progesterone and allopregnanolone increase glycine release in rat brain cells.
May 2026 in “Journal of Medicinal Food” Hydrolyzed keratin peptide improves hair growth and health.
64 citations
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January 2013 in “The journal of investigative dermatology/Journal of investigative dermatology” Human stem cells can help form hair follicles in mice.
36 citations
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March 2014 in “Molecular and Cellular Biology” Cidea is essential for proper lipid storage and secretion in sebaceous glands, affecting skin and hair health.
29 citations
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October 2009 in “Pharmacology Biochemistry and Behavior” 1 citations
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May 2010 in “Chinese journal of plastic surgery” Melatonin might help treat thick scars.
53 citations
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September 2013 in “Journal of Investigative Dermatology” Hair follicle cells help protect against immune attacks by regulating T-cell activity.
403 citations
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November 2005 in “Journal of Endocrinology” Dehydroepiandrosterone (DHEA) is a prohormone important for producing sex steroids and has potential health benefits.
48 citations
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March 2007 in “The journal of investigative dermatology/Journal of investigative dermatology” Retinoic acid production and signaling in hair follicles are regulated by location and timing, affecting hair growth and cycling.
53 citations
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September 2007 in “Annals of the New York Academy of Sciences” Thymosin beta 4 helps hair grow by boosting stem cell activity.
52 citations
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April 2002 in “Brain Research” Lower allopregnanolone levels increase stress-related dopamine release in the brain.
155 citations
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December 2002 in “Journal of Investigative Dermatology” Thyroid-related genes are active in skin cells and may affect autoimmune conditions.