Testosterone and dihydrotestosterone can slow down the growth of certain hair follicle cells.
3 citations,
June 2017 in “Journal of Biomaterials Applications” Keratin extract from human hair was found to promote hair growth in mice.
January 2023 in “Biocell” Safflower extract helps protect hair follicle cells from damage caused by chemotherapy.
1 citations,
October 1988 in “Clinics in dermatology” The document concludes that understanding how cells in the hair follicle grow and change is important for regulating hair growth.
October 2023 in “Journal of Cosmetic Dermatology” A synthetic octapeptide may help promote hair growth and counteract hair loss.
February 2024 in “Biomedical materials” Scientists created a lab-grown hair follicle model that behaves like real hair and could improve hair loss treatment research.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” Low-intensity ultrasound may protect hair follicles from damage caused by a common chemotherapy drug.
1 citations,
September 2023 in “Journal of Investigative Dermatology” Melatonin may protect hair follicle cells from damage caused by a chemotherapy drug.
6 citations,
July 2022 in “World journal of stem cells” Using extracellular vesicles from stem cells can help hair grow by affecting scalp cells and hair follicles.
166 citations,
August 2010 in “Proceedings of the National Academy of Sciences of the United States of America” Scientists found a new, less invasive way to study body clocks using hair cells, which shows shift workers' body clocks don't match their lifestyles.
2 citations,
August 2020 in “Clinical, Cosmetic and Investigational Dermatology” The hair-growth formula with L-cystine helps protect and grow hair cells.
63 citations,
September 2009 in “Regenerative Medicine” Scientists found a way to grow human hair cells in a lab that can create new hair when transplanted.
2 citations,
May 2023 in “Marine Drugs” Marine-derived saccharides may help reduce aging effects on skin and hair by promoting cell growth and collagen production.
January 2025 in “Journal of the Korean Society of Food Science and Nutrition” Combining finasteride and black soybean extract better protects hair cells from damage and may treat hair loss effectively with fewer side effects.
January 2017 in “Journal of Dermatology and Venereology” Naringenin and Hesperetin may help hair grow and protect hair cells from damage.
9 citations,
November 2019 in “Scientific reports” The AC 2 peptide from Trapa japonica fruit helps protect hair cells and may treat hair loss.
86 citations,
May 2002 in “Journal of Investigative Dermatology” A new keratin, hK6irs1, is found in all layers of the hair follicle's inner root sheath.
25 citations,
April 2018 in “Electromagnetic biology and medicine” Mobile phone radiation may cause DNA damage in human ear hair follicle cells.
January 2018 in “Open access journal of pharmaceutical research” Biofield Energy Healing may increase hair growth by enhancing cell proliferation.
Biofield Energy Healing significantly increased hair growth by making hair root cells grow more.
48 citations,
April 1995 in “PubMed” Testosterone helps beard and axillary hair cells grow by releasing growth factors from dermal papilla cells.
8 citations,
March 2015 in “Molecular Medicine Reports” Hair dye ingredient PPD causes cell death and aging in human hair cells by altering microRNA levels.
98 citations,
February 2007 in “Seminars in Cell & Developmental Biology” Androgens can both stimulate and cause hair loss, and understanding their effects is key to treating hair disorders.
April 2021 in “Journal of Investigative Dermatology” Leontopodium alpinum extract may help reduce hair shedding by keeping hair in the growth phase longer.
14 citations,
October 2020 in “Scientific reports” Hair greying is linked to reduced ATM protein in hair cells, which protects against stress and damage.
17 citations,
December 2015 in “BMC Complementary and Alternative Medicine” A new plant extract from Avicennia marina could potentially be used to treat common hair loss.
November 2022 in “Cosmetics” Red pigmented rice, like Sang-Yod rice, could help promote hair growth and prevent hair loss.
2 citations,
November 1992 in “Journal of dermatology” Hair cells grown in a lab showed specific hair proteins.
12 citations,
July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology” Certain sex hormones and antiandrogens can either slow down or speed up the growth of human hair follicle cells depending on their concentration.
February 2024 in “Journal of Dermatological Science” Curved hair can develop when hair cells merge abnormally during growth.