21 citations
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April 1990 in “Journal of comparative neurology” The study found that nerve signals are stronger when there are more connection points, but not necessarily denser, along the nerve's path in the spine.
68 citations
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November 2012 in “Journal of Investigative Dermatology” Prostaglandin D2 blocks new hair growth after skin injury through the Gpr44 receptor.
47 citations
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July 1967 in “Science” Not eating enough protein can cause hair roots to shrink and lose color, and hair to become thinner.
8 citations
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June 2020 in “The Journal of Clinical Endocrinology and Metabolism” Taking 5α-reductase inhibitors with prednisolone can worsen its negative effects on metabolism.
24 citations
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March 1995 in “British Journal of Dermatology” Etretinate therapy can cause hair loss by disrupting the hair growth cycle.
14 citations
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March 2019 in “Plant methods” The new microrhizotron tool effectively observes and measures pepper plant roots non-destructively.
11 citations
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January 2020 in “Micro and Nanosystems” The new gel improves skin delivery of a drug, potentially reducing dose frequency and side effects.
2 citations
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May 2018 in “Journal of The American Academy of Dermatology” Hypothyroidism patients with hair loss typically have thinning hair, smaller hair follicles, and normal hair shedding.
March 2019 in “European archives of medical research” Platelet-rich plasma injections are a cheap and effective way to reduce hair loss and improve hair quality in people with mild to moderate androgenetic alopecia.
28 citations
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January 2021 in “Skin appendage disorders” COVID-19 may cause early hair loss similar to classic temporary hair loss, with further research needed.
15 citations
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August 2006 in “Journal of Cutaneous Pathology” HIV-1 may cause increased stem cell death in hair follicles, leading to hair loss.
4 citations
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February 2018 in “Journal of Cosmetic Dermatology” Platelet-rich plasma injections made hair thicker for both men and women, with a greater effect in women.
271 citations
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June 2013 in “Human Reproduction” PCOS is common among Chinese women of reproductive age and linked to serious metabolic and reproductive issues, especially in obese women.
6 citations
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August 2007 in “Journal of Surgical Research” Mice genetically modified to produce more Del1 protein had faster hair regrowth.
December 2024 in “Research Square (Research Square)” Placental stem cell exosome therapy improves hair growth and reduces hair loss.
21 citations
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October 2011 in “PloS one” Certain molecules in hair change with age and could be used for cosmetic treatments.
18 citations
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October 2018 in “Nutrients” Annurca apple extract promotes hair growth by changing hair follicle metabolism to boost keratin production.
11 citations
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September 2020 in “Steroids” A new method accurately measures steroid hormones in a few hair strands and could help study chronic stress and hair loss.
23 citations
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September 2014 in “Journal of The American Academy of Dermatology” The robotic hair restoration device had a high success rate and was faster than manual methods for Korean patients.
11 citations
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November 2015 in “Skin Research and Technology” Women's hair grows faster and thicker than men's, but hair growth slows for both genders with pattern hair loss.
9 citations
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January 2018 in “BioMed Research International” Tetrahydroxystilbene Glucoside may help prevent hair loss by blocking certain pathways that lead to cell death.
5 citations
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September 2018 in “Bioscience, Biotechnology, and Biochemistry” Thiosulfate may help hair grow faster in mice and works well with a common hair growth treatment.
19 citations
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January 2007 in “Biological & pharmaceutical bulletin” Glycine reduces skin pigmentation by lowering melanin production.
4 citations
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August 2020 in “Journal of Cosmetic Dermatology” QR 678 and QR678 Neo treatments are effective for hair loss in women with PCOS.
May 2023 in “Frontiers in chemistry” Zolpidem shows up in hair from the top back of the head after one dose and fades over time, suggesting it gets into hair through blood and sweat.
15 citations
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May 2016 in “Archives of Dermatological Research” ULBP3 could be a marker for diagnosing alopecia areata incognita and may be linked to its cause and development.
August 2025 in “Tropical Journal of Natural Product Research” Celery extract and candlenut oil effectively and safely boost hair growth.
February 2023 in “International Journal of Medical Arts” Trichloroacetic acid is a safe and effective treatment for hair loss in alopecia areata patients.
October 2023 in “Archives of Aesthetic Plastic Surgery” Blepharoptosis surgery usually lowers the eyebrows, especially near the nose.
May 2014 in “Transfusion and Apheresis Science” The study found that the quality of cord blood units remains consistent before freezing and after thawing, indicating that attached tube segments reliably represent the graft's properties.