July 2025 in “Scientific Reports” Serotonin helps hair grow by activating certain cells.
5 citations
,
January 2021 in “BioMed Research International” Noncrosslinked hyaluronic acid helps human hair cells grow and could be a potential hair loss treatment.
1 citations
,
September 2025 in “Journal of Cosmetic Dermatology” Addressing biological changes in lipids, metabolism, and microbiota may help treat hair loss in young Chinese females with oily scalps.
January 2023 in “International Journal of Dermatology and Venereology” Many people experienced hair loss after having COVID-19, with the worst cases in hospitalized patients, and some saw hair regrowth within six months.
January 2019 in “Deleted Journal” Biofield Energy Healing may promote hair growth and treat skin disorders by enhancing hair follicle development.
56 citations
,
December 2010 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair follicle cells age faster and lose pigment due to less catalase, causing hair to turn gray.
46 citations
,
April 2014 in “PLOS ONE” Gray hair may be caused by lower antioxidant activity in hair cells.
20 citations
,
December 2013 in “PubMed” Quercetin boosts melanin production in mouse hair follicles.
August 2024 in “Applied Sciences” Plant extracts may help prevent or reverse hair graying.
22 citations
,
May 2019 in “Animals” High hair cortisol levels indicate stress in cows due to poor shelter conditions and health issues.
1 citations
,
May 2025 in “Maturitas” Menopause can cause hair loss in women due to hormonal changes, affecting their well-being and quality of life.
September 2025 in “International Journal of Molecular Sciences” Unmodified fullerene C60 promotes hair growth and may help treat hair loss.
44 citations
,
November 2018 in “Journal of applied ecology” Hair analysis for stress and reproductive hormones in wildlife needs more research for accuracy across species.
7 citations
,
February 2023 in “Inflammation and Regeneration” The protein interleukin-1 alpha helps regenerate hair follicles and increase stem cell growth in mice.
Perilla seed extract may help prevent hair loss better than some standard treatments.
October 2024 in “International Journal of Molecular Sciences” Rosa rugosa extract promotes hair growth and could be a natural treatment for hair loss.
January 2024 in “Cosmetics” Menopause worsens skin, hair, and nails, affecting self-esteem and quality of life.
40 citations
,
December 2011 in “British Journal of Dermatology” Women's hair generally gets thinner and less dense starting in their mid-thirties, with hair loss becoming more common as they age due to both genetics and environment.
March 2025 in “International Journal of Molecular Sciences” Melatonin promotes hair growth and quality by enhancing hair follicle development and reducing stress.
January 2022 in “Biomedical Reports” Inaudible sound at 30 kHz can boost hair growth and decrease hair loss by promoting cell growth and reducing cell death in hair follicles.
November 2025 in “Cosmetics” Rice germ oil improves hair health, but adding ferulic acid offers limited benefits and may worsen chemically damaged hair.
March 2024 in “Biochimica et biophysica acta. Molecular basis of disease” Deferoxamine may help protect inner ear cells from damage caused by oxidative stress.
February 2024 in “Scientific Reports” Cinnamic acid may help hair grow by activating oxytocin receptors.
May 2023 in “General and comparative endocrinology” Monkey hair cortisol levels are not affected by how fast their hair grows.
11 citations
,
October 2022 in “Clinical Cosmetic and Investigational Dermatology” Personalized skincare can be improved by understanding genetic differences and using compounds like Resveratrol and Quercetin.
11 citations
,
June 2021 in “Frontiers in Cell and Developmental Biology” Melatonin helps goat hair stem cells grow and maintain their ability to become different cell types.
8 citations
,
July 2019 in “The journal of investigative dermatology/Journal of investigative dermatology” Curly hair is mechanically different from straight hair and may need new testing methods.
2 citations
,
January 2023 in “Redox Report” Estradiol may protect ear cells from hearing loss caused by a chemotherapy drug by activating a protective pathway.
1 citations
,
January 2019 in “Turk Dermatoloji Dergisi” Oxidative stress is likely important in causing telogen effluvium, and antioxidants might help treat it.
October 2025 in “International Journal of Science and Research (IJSR)” Lifestyle changes and alternative therapies can help manage Polycystic Ovarian Disease.