July 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair growth cycles need varied signals in space and time.
2 citations
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January 1997 in “Archives of Dermatology” Alopecia areata can regrow hair in a pattern similar to androgenetic alopecia.
59 citations
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August 2024 in “Cell stem cell”
November 2025 in “Journal of Microbiology and Biotechnology” Pea sprout extract may help hair regrow by reducing stress and inflammation.
11 citations
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January 2010 in “European Journal of Dermatology” Contact immunotherapy helped hair regrow in a patient with both alopecia and psoriasis.
13 citations
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November 1959 in “Annals of the New York Academy of Sciences” Human hair follicles can grow back.
April 2026 in “Journal of Ethnopharmacology”
7 citations
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January 2013 in “BioMed research international” Hair follicles and deer antlers regenerate similarly through stem cells and are influenced by hormones and growth factors.
January 2016 in “프로그램북(구 초록집)” Hormones and neuropeptides affect hair growth, with androgens having opposite effects on beard and scalp hair.
30 citations
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April 2020 in “Stem Cell Research & Therapy” PI3K/Akt pathway is crucial for hair growth and regeneration.
August 2012 in “Nature Cell Biology” Hair grows when stem cell offspring in the follicle base proliferate, influenced by the dermal papilla.
1 citations
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June 2017 in “Nature Reviews Immunology” Immune cells called Treg cells are essential for hair growth and regeneration.
Understanding hair follicle communication can help treat hair loss.
4 citations
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August 2004 in “The Journal of Dermatology” Healing psoriatic plaques can cause unexpected hair growth.
6 citations
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February 2014 in “Experimental Dermatology” Hair follicle regeneration is possible but challenging, especially in humans, due to the need for specific cells and a better understanding of how they signal growth.
80 citations
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November 2017 in “New Phytologist” Roots adapt to uneven environments by changing growth and gene expression.
April 2026 in “Stem Cell Reviews and Reports”
50 citations
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October 1918 in “The journal of experimental zoology” Artificially inducing hair regrowth in mice can change the normal pattern and timing of hair growth, with minimal color differences between old and new fur.
April 2019 in “Journal of Investigative Dermatology” Activating the Sonic hedgehog pathway can help regenerate hair follicles during wound healing in mice, potentially improving regeneration after injury.
179 citations
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April 2012 in “Nature Communications” Regenerated fully functional hair follicles using stem cells, with potential for hair regrowth therapy.
August 2023 in “bioRxiv (Cold Spring Harbor Laboratory)” Axolotls regenerate their spinal cord through a signal that recruits cells, influenced by cell sensitivity and signal spread.
18 citations
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January 2019 in “Experimental Dermatology” Certain cells outside the hair follicle's bulge area can quickly regenerate damaged hair follicles, potentially helping to reduce hair loss from cancer treatments.
120 citations
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November 2014 in “Biological Reviews” The telogen phase of hair growth is active and important for preparing hair follicles for regeneration, not just a resting stage.
95 citations
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December 1980 in “The New England Journal of Medicine” Minoxidil helped bald patient regrow hair.
27 citations
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January 2012 in “Current Topics in Microbiology and Immunology” Mice that can regenerate tissue have cells that pause in the cell cycle, which is important for healing, similar to axolotls.
60 citations
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July 2011 in “Stem Cells and Development” Certain signals and genes play a key role in hair growth and regeneration, and understanding these could lead to new treatments for skin regeneration.
19 citations
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November 2001 in “Journal of Investigative Dermatology Symposium Proceedings” Human hair follicles can regenerate and recover after severe injury by going through a brief abnormal resting phase before growing again.
3 citations
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January 2021 in “Plastic and Aesthetic Research” Hair loss reduces hair thickness and coverage, but drug treatments mainly revive dormant hairs rather than reverse thinning; patients often undervalue their hair loss severity.
85 citations
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December 2017 in “Developmental Biology” Mammals might fail to regenerate not because they lack the right cells, but because of how cells respond to their surroundings, and changing this environment could enhance regeneration.
25 citations
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June 2022 in “Developmental cell” Overactivating Hedgehog signaling makes hair follicle cells in mice grow hair faster and create more follicles.