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.
22 citations,
July 2011 in “EFSA journal” There is not enough evidence to support health claims about soy isoflavones.
3 citations,
June 2011 in “EFSA Journal” Spermidine's effect on hair growth is not proven.
1 citations,
July 2012 in “EFSA Journal” The combination of certain vitamins and pumpkin seed oil has not been proven to maintain normal hair.
1 citations,
July 2008 in “Expert Review of Dermatology” Normal hair thickness varies by scalp area and a mix of hair thicknesses is typical in healthy individuals.
October 2023 in “Asian journal of pharmaceutical and clinical research” Standardized data is essential for diagnosing scalp and hair conditions in males.
20 citations,
January 2015 in “Current problems in dermatology” Hair gets thinner, grayer, and changes texture with age due to genetics, environment, and cellular changes, affecting the growth cycle.
4 citations,
November 2004 in “Clinical and Experimental Dermatology” Hair length and thickness are related, with thickness peaking at about a quarter of the hair's maximum length.
24 citations,
September 2012 in “Dermatologic Surgery” The conclusion is that normal scalp hair counts for Taiwanese people were established, showing age-related differences but not sex or scalp location differences.
16 citations,
November 2013 in “European Journal of Dermatology” Hair gets thinner and grayer with age, and density decreases more in men on top and in women on top and back.
107 citations,
June 1997 in “PubMed” EGFR is essential for normal hair development and follicle differentiation.
19 citations,
August 2013 in “Facial Plastic Surgery Clinics of North America” Children's hairlines change shape as they grow, with women often developing a widow's peak and men's hairlines becoming more convex and possibly balding at the temples, influenced by genetics and hormones.
16 citations,
August 2012 in “The journal of investigative dermatology/Journal of investigative dermatology” MED1 is essential for normal hair growth and maintaining hair follicle stem cells.
39 citations,
January 2008 in “Journal of Endocrinology” SCF and c-Kit decrease in AGA hair follicles, possibly affecting hair pigmentation and growth.
9 citations,
August 2013 in “Journal of Tissue Engineering and Regenerative Medicine” Transplanted baby mouse skin cells grew normal hair using a new, efficient method.
9 citations,
January 2008 in “Acta histochemica et cytochemica” COX-2 levels change during the hair cycle and affect skin and hair growth.
1 citations,
August 1994 in “Journal of Cutaneous Pathology” Hair loss happens due to faster cell growth and fewer cells in affected follicles.
19 citations,
October 1996 in “Dermatologic Clinics” Dermal papilla cells are key for hair growth and could help us understand and treat hair loss.
19 citations,
August 1993 in “Journal of Cutaneous Pathology” Alopecia causes smaller hair follicles and affects growth-related structures.
13 citations,
August 1995 in “Australasian Journal of Dermatology” Hair follicles are smaller in people with androgenetic alopecia compared to those with normal scalps.
1 citations,
July 2012 in “EFSA journal” KF2BL20 does not have proven benefits for maintaining normal hair.
March 2012 in “EFSA Journal” Iron intake has not been proven to maintain normal hair growth.
40 citations,
June 2009 in “Journal of Cutaneous Pathology” AGA patients have fewer hairs and smaller follicles; T:V ratio above 4:1 may indicate AGA.
17 citations,
January 2006 in “Veterinary Dermatology” Topical melatonin and brushing did not affect hair regrowth in Siberian Huskies.
7 citations,
March 2022 in “Frontiers in Genetics” The research found specific genes that may cause longer hair in Tianzhu White Yak.
December 2022 in “JEADV Clinical Practice” Hair density and thickness decrease in specific scalp areas in people with androgenetic alopecia.
May 2017 in “The journal of immunology/The Journal of immunology” Patients with certain FoxN1 gene mutations have severe immune issues but normal skin and hair.
January 2015 in “American journal of medical and biological research” May 2018 in “The journal of immunology/The Journal of immunology” Mutations in the FOXN1 gene cause severe immune issues but don't affect hair and nails.
November 2019 in “Harper's Textbook of Pediatric Dermatology” Understanding normal hair growth and loss in children is key to diagnosing and treating hair disorders.