23 citations,
December 1991 in “Annals of the New York Academy of Sciences” Balding scalps slow down hair growth.
11 citations,
November 2015 in “Skin Research and Technology” Women's hair grows faster and thicker than men's, but hair growth slows for both genders with pattern hair loss.
7 citations,
May 1979 in “Medical & biological engineering & computing” The trichometer accurately measures hair growth and is easy to use.
7 citations,
September 2014 in “European Journal of Dermatology” Thicker hair grows faster; hair loss patients have slower growth.
1 citations,
January 2016 in “Hair therapy & transplantation” Liposomal cepharanthine lotion speeds up hair growth in men with early balding.
May 2023 in “General and comparative endocrinology” Monkey hair cortisol levels are not affected by how fast their hair grows.
Plucked hair follicles grow faster than conventional ones, making them a potentially better option for hair transplants.
April 2024 in “Journal of wildlife diseases” Muskox hair growth rates vary widely, so a single growth rate can't be used for all populations.
26 citations,
December 1981 in “British journal of dermatology/British journal of dermatology, Supplement” Cyproterone acetate reduced hair growth in most hirsute females and made hair softer, thinner, and lighter.
4 citations,
October 2009 in “Skin research and technology” Colorimetry can accurately measure hair growth rates in mice.
4 citations,
January 2022 in “Journal of nanomaterials” Silver nanoparticles made from Ziziphus nummularia fruit extract promote hair growth and fight bacteria and fungi.
57 citations,
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.
The document concludes that measuring hair density, shaft diameter, growth rate, and anagen:telogen ratio is important for assessing hair growth treatments.
1 citations,
July 2022 in “Frontiers in Microbiology” MSM supplementation in kittens improves hair quality and growth rate without harming their health.
March 2009 in “Journal of The American Academy of Dermatology” AGA patients have higher rates of metabolic syndrome and carotid atheromatosis, suggesting early screening and prevention is important.
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,
September 2002 in “Dermatologic Surgery” The place where hair is transplanted can affect its growth and survival rates.
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.
70 citations,
June 2003 in “Journal of Investigative Dermatology Symposium Proceedings” TrichoScan is a reliable method for measuring hair growth and is useful for assessing hair loss treatments.
69 citations,
April 2019 in “Biomedicines” PRP and HF-MSCs treatment improves hair growth, thickness, and density in androgenetic alopecia.
31 citations,
June 2001 in “PubMed” TrichoScan accurately measures hair growth and showed improved hair counts and thickness after finasteride treatment.
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.
16 citations,
April 2009 in “Dermatologic Surgery” The place where hair is transplanted can change its growth rate and length but not its thickness.
11 citations,
January 2017 in “Evidence-based Complementary and Alternative Medicine” DA-5512 effectively improves hair growth and health, performing better than minoxidil.
2 citations,
January 1994 in “Journal of S C C J” The study concluded that certain hair growth measurements are good indicators of baldness severity and provide a more accurate assessment than subjective grading.
1 citations,
March 2009 in “Hair transplant forum international” The TrichoScan method effectively measures hair growth and helps choose patients for hair restoration surgery.
April 2024 in “Anais brasileiros de dermatologia/Anais Brasileiros de Dermatologia” Using both minoxidil and biotin together increased hair growth more than using either one alone.
December 2023 in “Journal of Cosmetic Dermatology” The hair growth product was effective and safe, increasing hair growth, thickness, and density while reducing hair fall.
November 2023 in “International Journal of Women's Dermatology” Hormone replacement therapy may improve hair growth in the frontal hairline of postmenopausal women with hair loss.