Amaranthus extract cream safely boosts hair growth in men with hair loss.
15 citations
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July 2008 in “Journal of Dermatological Science” Ephrin-A3 helps increase and speed up hair growth in baby mice.
6 citations
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January 2023 in “npj regenerative medicine” Transplanting growing hair follicles into scars can help regenerate and improve scar tissue.
6 citations
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November 2013 in “International Journal of Radiation Biology” Gamma-rays exposure during the resting phase of hair growth can damage hair regeneration and color in mice.
November 2013 in “Institutional Repositories DataBase (IRDB)” Gamma-ray exposure during hair rest phase harms hair growth and color in mice.
1 citations
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January 2021 in “SSRN Electronic Journal” Transplanted hair follicles can improve and remodel mature scars.
November 2025 in “Journal of Clinical Medicine” The drinkable supplement reduced hair shedding and increased hair growth in women.
Higher PD-1 levels mean fewer CD8+ T cells in alopecia areata hair follicles.
April 2023 in “Journal of Investigative Dermatology” Higher PD-1 levels are linked to fewer immune cells in hair follicles in alopecia areata.
10 citations
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January 2014 in “Genetics and Molecular Research” Liaoning Cashmere goat hair follicles show synchronized growth patterns with lowest activity in May.
5 citations
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November 2015 in “International Journal of Radiation Biology” Gamma-ray exposure can cause long-lasting damage to hair follicles, affecting hair structure and color.
16 citations
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April 2015 in “Lasers in Surgery and Medicine” Using a fractional laser can stimulate hair growth, but the intensity and duration of inflammation are crucial. Too much can cause ulcers and scarring. Lower beam energy and fewer treatments are recommended to avoid damage.
41 citations
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May 2001 in “PubMed” Different thicknesses of hair strands can indicate the severity of hair thinning.
October 2022 in “Hair Transplantation” Hair disorders are caused by genetics, environment, hormones, or inflammation, and treatments focus on normalizing hair growth and density.
August 2022 in “International Journal of Molecular Sciences” DNA methylation controls lncRNA2919, which negatively affects hair growth.
13 citations
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August 2016 in “Medical Hypotheses” Hair characteristics might be early signs of Type 2 Diabetes and could help with early prevention.
1 citations
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May 2022 in “International Journal of Cosmetic Science” Edelweiss extract can increase hair density and promote hair growth.
February 2026 in “Bioengineering” Hyperbaric oxygen therapy may improve hair and scalp health.
February 2026 in “Preprints.org” Hyperbaric oxygen therapy may improve hair growth and scalp health.
April 2024 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology” Retinoic acid helps activate hair growth in people with common hair loss by working on a specific cell growth pathway.
24 citations
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October 2017 in “Scientific reports” Changing light exposure can affect hair growth timing in goats, possibly due to a key gene, CSDC2.
August 2019 in “Journal of the American Academy of Dermatology” Ginseng and Albizia extracts help prevent hair thinning with age.
10 citations
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June 2015 in “Seminars in cutaneous medicine and surgery” Hair loss can be caused by various factors, and treatments focus on restoring normal hair growth.
1 citations
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May 2026 in “bioRxiv (Cold Spring Harbor Laboratory)” UT-018 speeds up wound healing and boosts hair growth in mice.
14 citations
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July 2019 in “Experimental and Molecular Medicine” Nanog gene boosts stem cells, helps hair growth, and may treat hair loss.
April 2021 in “Current Topics in Nutraceutical Research” Citron seed oil may help prevent or treat hair loss by promoting hair growth and increasing hair density.
March 2009 in “Medical & surgical dermatology” Women with androgenetic alopecia have fewer terminal hairs, phenol in nail surgery is safe, and a new hair transplant method is faster and less damaging.
31 citations
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May 2008 in “Drug Discovery Today: Disease Mechanisms” Different hair growth problems are caused by genetic issues or changes in hair growth cycles, and new treatments are being developed.
57 citations
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November 1987 in “Pediatric Dermatology” Children's hair grows in different types from before birth through puberty, with growth rates and characteristics varying by age, sex, and race.
67 citations
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July 1985 in “British journal of dermatology/British journal of dermatology, Supplement” Men's thigh hair grows longer and has a longer growth cycle than women's, but arm hair growth is similar between genders.