26 citations,
October 2007 in “Experimental Dermatology” L-Carnitine-L-tartrate may help hair grow and prevent hair loss.
16 citations,
November 2009 in “Experimental dermatology” Ionizing radiation damages human hair follicles by stopping cell growth, causing cell death, disrupting color, and increasing stress and damage markers.
10 citations,
January 2012 in “Journal of biomedical optics” Melanin density affects hair color, and this method can help in cosmetic assessments and diagnosing hair diseases.
4 citations,
December 2020 in “International journal of research - granthaalayah” Tetracycline can stick to hair follicles and potentially cause hair loss.
September 2024 in “Journal of the American Academy of Dermatology” Regulatory γδ T cells help protect hair follicles from alopecia areata and promote hair regrowth.
November 2023 in “Journal of Investigative Dermatology” γδTregs can protect hair follicles from alopecia areata and may help regrow hair.
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.
58 citations,
October 2016 in “Journal of Investigative Dermatology” Activating Nrf2 protects human hair follicles from oxidative stress and helps prevent hair growth inhibition.
44 citations,
March 2004 in “Journal of Investigative Dermatology” The effects of estrogen on human hair growth are unclear and need more research.
29 citations,
March 2015 in “Journal of Investigative Dermatology” Cyclosporine A promotes hair growth and prolongs the active growth phase in human hair follicles, but may work differently than in rodents.
24 citations,
November 2019 in “Experimental Dermatology” PPAR-γ is important for healthy hair and its problems, and more research on PPAR-γ treatments is needed.
April 2023 in “Journal of Investigative Dermatology” IL-9/IL-9R signaling can negatively affect human hair growth and may be a target for treating hair loss conditions.
Collagen peptides may help maintain hair growth and could be beneficial for hair loss conditions.
July 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” Blocking mTORC1 activity with rapamycin could help increase hair pigmentation and growth, potentially reversing gray hair.
April 2021 in “Journal of Investigative Dermatology” Leontopodium alpinum extract may help reduce hair shedding by keeping hair in the growth phase longer.
550 citations,
December 2005 in “The Journal of clinical investigation/The journal of clinical investigation” Researchers successfully isolated and identified key markers of stem cell-enriched human hair follicle bulge cells.
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.
4 citations,
April 1986 in “Cancer Letters” GSH-T levels in hair follicles are similar in smokers and non-smokers and don't increase with certain treatments.
July 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” MPZL3 is important for controlling the hair growth cycle in mice and humans.
November 2022 in “Journal of Investigative Dermatology” Fish-derived collagen may help hair grow longer and affect hair stem cells, while bovine collagen could benefit hair stem cell maintenance, potentially aiding in hair loss conditions.
July 2022 in “Journal of Investigative Dermatology” IL-15 helps maintain hair growth and protects the immune status of hair follicles.
19 citations,
November 2012 in “British Journal of Dermatology” Dopamine stops hair growth and pigment production in human scalp hair follicles.
15 citations,
July 2019 in “Journal of Investigative Dermatology” CBD can either reduce inflammation and not affect hair growth at low levels or inhibit hair growth at high levels.
April 2023 in “Journal of Investigative Dermatology” ALRN-6924 can protect hair follicles from chemotherapy damage by temporarily stopping cell division.
62 citations,
November 2009 in “Aging Cell” Hedgehog signaling helps keep hair follicle stem cells the same in both young and old human skin.
18 citations,
January 2008 in “Journal of The American Academy of Dermatology” Certain proteins and their receptors are more active during the growth phase of human hair and could be targeted to treat hair disorders.
6 citations,
August 2019 in “PLOS ONE” Gambogic Amide helps maintain hair color and promotes hair growth.
January 2024 in “Annals of Dermatology” Korean Red Ginseng may help protect hair from damage and promote growth.
14 citations,
October 2020 in “Scientific reports” Hair greying is linked to reduced ATM protein in hair cells, which protects against stress and damage.
7 citations,
July 2008 in “Experimental Dermatology” The study concluded that a protein important for hair strength is regulated by certain molecular processes and is affected by growth phases.