February 2024 in “Endocrinology and Disorders” Balanced hormones are crucial for women's health, and can be managed with lifestyle changes or hormone therapy if needed.
January 2023 in “Health science reports” French maritime pine bark extract significantly increased hair density in menopausal women.
October 2022 in “Frontiers in Endocrinology” New tools show that in fish, NPY increases feeding and somatostatin decreases it.
February 2022 in “Actas dermo-sifiliográficas/Actas dermo-sifiliográficas” Hair shaft disorders, often due to genetics or environment, lack specific treatments but can be managed with gentle hair care and may improve with age or topical treatments.
March 2021 in “AACE clinical case reports” A man with both Klinefelter syndrome and primary hyperparathyroidism showed a rare combination of symptoms and genetic patterns.
January 2017 in “Journal of Investigative Dermatology Symposium Proceedings” The 2015 Hair Research Congress concluded that stem cells, maraviroc, and simvastatin could potentially treat Alopecia Areata, topical minoxidil, finasteride, and steroids could treat Frontal Fibrosing Alopecia, and PTGDR2 antagonists could also treat alopecia. They also found that low-level light therapy could help with hair loss, a robotic device could assist in hair extraction, and nutrition could aid hair growth. They suggested that Alopecia Areata is an inflammatory disorder, not a single disease, indicating a need for personalized treatments.
122 citations
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December 2022 in “International Journal of Molecular Sciences” Nanoparticles improve skin treatment but need more research on safety and effectiveness.
11 citations
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January 2016 in “BMC veterinary research” Urinary Se to creatinine ratio, serum Se, and glutathione peroxidase are effective early biomarkers for selenium status in dogs.
46 citations
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November 1963 in “Journal of Histochemistry & Cytochemistry” Arginine converts to citrulline in hair follicles as proteins harden.
45 citations
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January 1977 in “Advances in experimental medicine and biology” Hair follicles have an enzyme that converts arginine to citrulline in proteins.
17 citations
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October 2016 in “Artificial Cells Nanomedicine and Biotechnology” Using tiny fat particles to deliver arginine to hair follicles could be a new way to treat hair loss.
8 citations
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November 1976 in “Journal of Investigative Dermatology”
7 citations
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June 2021 in “Amino acids” Human hair protein modifications could potentially indicate heart disease risk.
1 citations
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June 2019 in “Current developments in nutrition” A combination of arginine silicate complex and magnesium biotinate improves hair and nail growth in rats.
June 2023 in “Italian journal of dermatology and venereology” The oral supplement improved hair loss in patients with telogen effluvium.
September 2018 in “Cosmetics” Inositol and arginine solutions improve hair follicle health and turnover.
36 citations
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March 2014 in “Biomaterials” A new skin-whitening agent using a peptide from wheat is safe and effective at reducing skin pigmentation.
12 citations
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December 1981 in “Journal of Endocrinology” α-MSH increases melanin production in moulting hair follicles, while AVT inhibits it.
3 citations
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April 2015 in “Current problems in dermatology” A more sensitive assay was developed to detect enzyme activity converting arginine to citrulline in hair follicles.
November 2025 in “Advanced Science” A new nanozyme using EGCG and L-arginine boosts hair growth by safely increasing beneficial oxidative stress.
November 2025 in “Journal of Investigative Dermatology” Genetic variants in specific genes cause central centrifugal cicatricial alopecia.
July 2025 in “Journal of Investigative Dermatology” November 2024 in “Journal of Investigative Dermatology” Genetic changes in specific proteins contribute to hair loss in some women of African descent.
125 citations
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February 1971 in “Biochemistry” Specific cross-linkages help make hair proteins stable and strong.
116 citations
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April 1986 in “The journal of cell biology/The Journal of cell biology” Trichohyalin is a protein in hair follicles that helps form hair filaments.
72 citations
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May 1993 in “The Journal of Cell Biology” Trichohyalin in sheep hair follicles may help with structure and calcium binding.
46 citations
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May 1991 in “British Journal of Dermatology” Heparin can inhibit hair growth in mice when injected.
43 citations
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July 2012 in “Molecular human reproduction” Certain metabolites are lower in women with PCOS and could be potential markers for the condition.
30 citations
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June 2022 in “Animals” Key genes, including KRT39 and KRT74, influence hair length in Inner Mongolia cashmere goats.