152 citations
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December 2003 in “Micron” As people age, their hair follicles produce less pigment, leading to gray and white hair, due to factors like reduced enzyme activity and damage to melanocyte DNA.
80 citations
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April 2006 in “Clinical Interventions in Aging” Minoxidil and Finasteride are effective for male baldness; more research is needed for hair aging treatments.
October 2023 in “Biomimetics” The new hair-dyeing shampoo is safe, colors hair evenly, and strengthens it.
40 citations
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January 2018 in “International journal of trichology” Healthy scalp reduces hair loss by managing oxidative stress.
4 citations
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July 2024 in “BMC Zoology” Dromedary camel hair structure and mineral content change with age.
August 2025 in “Plastic and Aesthetic Research” Microneedling can effectively treat hair loss and works well with other treatments, but more research is needed.
February 2025 in “International Journal of Cosmetic Science” Protein carbonylation is a sensitive marker for oxidative damage in hair, especially from light exposure.
35 citations
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January 1981
1 citations
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August 2022 in “Chemical engineering journal advances” Scientists made human hair magnetic by coating it with special nanoparticles.
5 citations
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February 2022 in “Acta Biomaterialia” Nanomaterials can improve hair care products and treatments, including hair loss and alopecia, by enhancing stability and safety, and allowing controlled release of compounds, but their safety in cosmetics needs more understanding.
8 citations
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March 2015 in “Molecular Medicine Reports” Hair dye ingredient PPD causes cell death and aging in human hair cells by altering microRNA levels.
84 citations
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April 2015 in “Cosmetics” Hair dyes vary in how long they last and how deeply they penetrate hair.
November 2025 in “Plant Science Today” Natural anti-aging products from plants may help improve skin health.
17 citations
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May 2019 in “Molecules” These temporary hair dyes may be harmful to human health.
21 citations
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June 2023 in “Proceedings of the National Academy of Sciences” Tightly curled scalp hair helps reduce heat from the sun, protecting against overheating.
90 citations
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July 2014 in “Conservation Physiology” Hair cortisol levels in brown bears can be affected by both long-term and short-term stress.
January 2025 in “Advanced Materials Interfaces” Tannic acid can reduce hair loss by 56.2% by coating hair and releasing beneficial molecules.
December 2023 in “Asian journal of beauty & cosmetology”
2 citations
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July 2023 in “International Journal of Molecular Sciences” BFNB could be a promising treatment for hair growth.
March 2025 in “Molecular Medicine” Cholesterol helps hair grow by activating nerves and boosting hair follicle stem cells.
research Hair
January 2026 in “AAPS introductions in the pharmaceutical sciences”
September 2024 in “Heliyon” Repeated hair dyeing significantly damages hair.
53 citations
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July 2016 in “Cosmetics” Future hair cosmetics will be safer and more effective.
7 citations
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September 2020 in “International Journal of Cosmetic Science” Different sizes of keratin peptides can strengthen hair, with smaller ones possibly increasing volume and larger ones repairing damage.
January 2024 in “Molecules (Basel. Online)” Juglone from walnut extracts may help repair damaged hair.
3 citations
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December 2021 in “Skin research and technology” Higher hair luminosity and shine mean higher perceived transparency.
Combining medications with scalp care and lifestyle changes boosts hair growth and reduces medication side effects.
73 citations
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December 2015 in “Nature Genetics” Mutations in TBX3 cause horses to have more even hair color instead of Dun camouflage.
August 2025 in “Nutrients” Ageratum conyzoides extract promotes hair growth and regrowth.
July 2023 in “Biomolecules” The new "whisker follicle microinjection assay" can test how different biomolecules affect hair growth and color.