157 citations
,
April 1994 in “Clinical endocrinology” Androgens can cause hair growth in some areas and hair loss on the scalp.
6 citations
,
December 2018 in “International Journal of Cosmetic Science” Mexican women's hair is between Asian and Caucasian hair in thickness and shape, with varied strength and some damage.
May 2018 in “Journal of Investigative Dermatology” Activating Wnt in skin cells controls the number of hair follicles by directing cell movement and fate.
4 citations
,
July 1993 in “The Journal of Dermatologic Surgery and Oncology” The article concludes that hair restoration techniques must account for ongoing hair loss to ensure successful long-term results.
May 2012 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” A simple method using the wash test and dermatoscopy can help differentiate between two hair loss conditions, androgenetic alopecia and chronic telogen effluvium.
January 1996 in “Springer eBooks” Hair can regrow if the sebaceous gland is intact, even if the hair root is removed.
February 2012 in “Clinical and Experimental Dermatology” Many adult women experience unexplained excessive hair shedding, often starting before age 40.
72 citations
,
February 2011 in “American Journal of Biological Anthropology” The conclusion is that recognizing hair growth cycles can improve the precision of dietary and health assessments from hair analysis.
2 citations
,
March 2017 in “Sultan Qaboos University medical journal” An infant had two different natural hair colors on the scalp with no health issues.
34 citations
,
June 2005 in “Developmental dynamics” Runx3 helps determine hair shape.
39 citations
,
April 2020 in “Clinical, Cosmetic and Investigational Dermatology” Asian hair is generally straight and thick, with unique disorders and properties, and more research is needed to understand it fully.
January 2025 in “Surgical & Cosmetic Dermatology” Temporal triangular alopecia causes permanent hair loss and can be managed with treatments like minoxidil or hair transplantation.
11 citations
,
February 2011 in “The Journal of Dermatology” Mutations in the hairless gene cause a rare form of permanent hair loss.
5 citations
,
October 2013 in “Experimental Dermatology” The commentary explains that a balance of HR protein and putrescine is important for normal hair growth.
8 citations
,
November 2022 in “International Journal of Cosmetic Science” Human hair varies widely and should be classified by curl type rather than race.
April 2019 in “The journal of investigative dermatology/Journal of investigative dermatology” A specific mutation in the TRPV3 gene causes hair follicle cells to develop improperly, leading to hair loss.
April 2026 in “Actas Dermo-Sifiliográficas” Scalp cooling and minoxidil can help manage hair loss after chemotherapy.
January 2003 in “Springer eBooks” Androgenic alopecia is a type of hair loss that's partly inherited and can be due to hormonal imbalance.
5 citations
,
October 1988 in “Diabetes Research and Clinical Practice” Hair glycation can indicate long-term blood sugar trends in diabetics.
14 citations
,
November 2011 in “Journal of The American Academy of Dermatology” Alopecia Areata Incognita causes widespread hair thinning, and treatment with systemic corticosteroids and psychiatric support can lead to remission.
November 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” IL-15 promotes hair growth and protects hair follicles.
55 citations
,
February 1975 in “Journal of Cutaneous Pathology” Dermal cell activity increases during hair growth in rats.
June 2023 in “Zenodo (CERN European Organization for Nuclear Research)”
A 5-year-old girl has sparse, dry, and brittle hair but is otherwise healthy.
April 2024 in “American Journal of Biological Anthropology” Hair traits vary widely and are not reliable indicators of ancestry.
10 citations
,
July 2007 in “PubMed” Chemotherapy causes hair loss in cancer patients by affecting both growing and resting hair.
6 citations
,
January 1981 May 2025 in “International Journal of Trichology” Partially bald areas in Indian AGA patients still have hair growth cells, suggesting early treatment is best.
2 citations
,
June 2024 in “JAAD reviews.” Some drugs can cause permanent hair loss, though it's rare.
2 citations
,
May 1979 in “PubMed” Monilethrix is not caused by a metabolic defect.