53 citations,
March 2014 in “Growth Hormone & IGF Research” IGF-1 injections help mice grow more hair by increasing cell growth and blocking a hair growth inhibitor.
51 citations,
January 2004 in “Domestic animal endocrinology” Melatonin implants and long daylight hours alter the timing of hormone release and hair growth in mouflon sheep.
37 citations,
March 2018 in “Trends in Plant Science” pH, calcium, and reactive oxygen species regulate plant cell growth, with key roles for NADPH oxidases and plasma membrane H+-ATPases.
32 citations,
June 2015 in “PLOS ONE” Olive leaf compound oleuropein helps grow hair in mice.
32 citations,
December 1999 in “Journal of Investigative Dermatology Symposium Proceedings” 17-β-Estradiol applied to the skin stops hair growth, while ICI 182 780 helps hair grow in mice.
29 citations,
August 2017 in “Skin appendage disorders” IGF-1 may affect hair growth and loss, but more research is needed to confirm effective and safe treatments.
28 citations,
March 2019 in “Journal of Dermatological Science” The document concludes that while lab results for hair growth promotion are promising, human trials are needed and better testing methods should be developed.
28 citations,
March 1942 in “Journal of Endocrinology” Male rats grow hair faster than females, and certain hormones can slow or slightly increase hair growth, but not significantly beyond natural rates.
24 citations,
October 2017 in “Biomolecules” Some growth factors, while important for normal body functions, can cause diseases when not regulated properly.
22 citations,
March 2009 in “Journal of Natural Medicines” Erica multiflora plant extract can help hair grow by stimulating growth-related cells and triggering hair cycle changes.
21 citations,
March 2019 in “Experimental Dermatology” Immune cells around hair follicles help control hair growth and could be targets for treating hair disorders.
21 citations,
August 2016 in “Translational Andrology and Urology” Delayed ejaculation is a complex issue caused by psychological, biological, and lifestyle factors, requiring a holistic treatment approach.
20 citations,
February 2004 in “Veterinary dermatology” Dog hair grows back in about 14 weeks after being clipped for surgery, and the season doesn't really affect this growth rate.
18 citations,
December 2020 in “Frontiers in cell and developmental biology” miR-140-5p in certain cell vesicles helps hair growth by boosting cell proliferation.
18 citations,
January 2018 in “International journal of medical sciences” Non-thermal plasma treatment makes mouse skin thicker and increases growth factors without harming the tissue.
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.
14 citations,
January 2020 in “PloS one” Timing of light therapy affects horse coat growth, with photoperiod being crucial.
14 citations,
June 2001 in “Endocrinology” Prolactin affects when mice shed and grow hair.
13 citations,
June 2020 in “Stem Cells International” A substance from a specific gel helped to grow hair effectively in mice, suggesting it could potentially be used to treat hair loss in humans.
11 citations,
September 2012 in “Journal of animal physiology and animal nutrition” Higher protein diets with DL-methionine improve mink hair growth and fur quality.
11 citations,
July 2001 in “APMIS. Acta pathologica, microbiologica et immunologica Scandinavica./APMIS” Estrogens are key for bone growth spurts in both boys and girls and affect growth into adulthood.
11 citations,
September 1992 in “Journal of pineal research” Immunizing goats against melatonin can temporarily change their cashmere growth cycles and increase fleece production.
10 citations,
May 2020 in “Dermatology Research and Practice” Proteoglycans are important for hair growth, and a specific treatment can help reduce hair loss.
10 citations,
October 2015 in “Medicina Clínica (english Edition)” Recombinant human epidermal growth factor is versatile, effective, and safe for long-term skin and mucosal treatments.
10 citations,
January 2009 in “Elsevier eBooks” Hair growth is influenced by hormones and goes through different phases; androgens can both promote and inhibit hair growth depending on the body area.
9 citations,
September 2018 in “Journal of Photochemistry and Photobiology B-biology” A hair-growth formula with cystine and thiamin helps protect skin cells against UV damage and improves their growth.
9 citations,
July 2014 in “Experimental Dermatology” PTHRP agonists can stimulate hair growth, especially in damaged follicles, while antagonists may initially increase growth but ultimately inhibit it.
8 citations,
May 2019 in “Indian Journal of Plastic Surgery/Indian journal of plastic surgery” Plasma is better than Ringer's lactate for hair graft survival and growth after transplantation.
7 citations,
March 2018 in “Asian-Australasian journal of animal sciences” OCIAD2 and DCN genes affect hair growth in goats by having opposite effects on a growth signaling pathway and inhibiting each other.
7 citations,
January 2009 in “Biological & pharmaceutical bulletin” Ferrous Ferric Chloride may improve skin cell function and increase hair growth in mice.