January 2015 in “Springer eBooks” Healthy hair is crucial to avoid dryness, weakness, and breakage.
January 2023 in “Indian dermatology online journal” A child with ectodermal dysplasia-syndactyly syndrome has a new mutation in the NECTIN4 gene.
229 citations
,
August 2002 in “Experimental Gerontology” AGA causes hair loss by shrinking hair follicles due to DHT binding, and can be treated with finasteride and minoxidil.
38 citations
,
October 2011 in “Analytical biochemistry” Hair proteins have weak spots in their α-helical segments.
1 citations
,
January 2020 in “bioRxiv (Cold Spring Harbor Laboratory)” Weak cell junctions disrupt hair follicle stem cell rest.
1 citations
,
July 2015 in “Microscopy Research and Technique” Friedreich's ataxia causes thin, weak hair with surface damage and cavities.
235 citations
,
July 1999 in “Journal of biological chemistry/The Journal of biological chemistry” Human hair is made up of different keratins, some strong and some weak, with specific types appearing at various stages of hair growth.
August 2018 in “Journal of the American Academy of Dermatology” Biotin treatment for hair, nail, and skin disorders has weak evidence and should not be recommended unless new research shows clear benefits.
11 citations
,
December 2014 in “The American journal of pathology” A gene deletion in mice causes weak protein, immune issues, hair loss, airway problems, and wasting disease.
1 citations
,
July 2025 in “Frontiers in Genetics” FilaggrinHigh melanomas have active FGFR signaling and weak GNA14 and Th1 signatures.
Bleaching hair twice makes it very dry and weak.
September 2017 in “The journal of investigative dermatology/Journal of investigative dermatology” Male-pattern baldness has a weak link to heart disease and some related health conditions.
3 citations
,
January 2016 in “Journal of cosmetology & trichology” Taking vitamins, minerals, and amino acids can improve hair strength and quality in people with Monilethrix.
155 citations
,
March 2009 in “Seminars in Cutaneous Medicine and Surgery” Scalp cooling might reduce hair loss from chemotherapy, but evidence is weak and other treatments are being tested.
81 citations
,
February 2014 in “Clinics in dermatology” Demodex mites can cause skin issues, especially in people with weak immune systems.
33 citations
,
April 2005 in “British Journal of Dermatology” Aging alone barely affects the number of hair follicles, meaning hair loss is minimal without other conditions like androgenetic alopecia.
3 citations
,
July 2019 in “International journal of scientific research in science and technology” Herbal hair gel with fenugreek seed extract was found to increase hair growth.
November 2025 in “Zenodo (CERN European Organization for Nuclear Research)” Dermatophytosis is a common cat fungal infection, usually mild but can be severe in weak or young animals.
May 2019 in “Cytotherapy” Patients in Australia underwent costly, unproven stem cell treatments due to weak regulations and aggressive marketing.
47 citations
,
November 2007 in “The journal of investigative dermatology. Symposium proceedings/The Journal of investigative dermatology symposium proceedings” Healthy hair is shiny, smooth, and has clean ends.
July 2023 in “Hair transplant forum international” Eating the right foods can improve hair health by reducing damage and providing proper nutrients.
10 citations
,
September 2019 in “Frontiers in Veterinary Science” Older steers have higher hair cortisol levels than younger steers.
2 citations
,
August 2019 in “International Journal of Cosmetic Science” Older age and certain lifestyles are linked to thinner, weaker hair, while how you see your hair relates to its thickness.
161 citations
,
April 2006 in “Journal of Investigative Dermatology” Liposomes with certain properties can effectively deliver drugs deep into hair follicles.
42 citations
,
December 2019 in “Steroids” Body hair isn't a good substitute for scalp hair in steroid analysis.
25 citations
,
October 1993 in “American Journal of Physical Anthropology” Lower DHT levels lead to more body hair growth.
8 citations
,
September 1981 in “Zentralblatt für Veterinärmedizin Reihe A” Biotin deficiency in pigs causes hair loss, skin issues, and weak claws.
7 citations
,
October 2016 in “Dermatologic Therapy” About 40% of women without hair loss and 60% with hair loss experience a lot of hair shedding, especially those under 50 with long hair.
6 citations
,
December 2019 in “International Journal of Cosmetic Science” White hair has weaker tryptophan fluorescence than other unpigmented fibers, possibly due to UV exposure or unknown substances.
5 citations
,
January 1993 in “Hormone and Metabolic Research” DHEA and DHEA-S help maintain underarm hair in older women.