July 2023 in “Drug testing and analysis (Print)” Homemade hair treatments can significantly lower drug levels in hair, possibly causing false-negative drug tests.
January 2017 in “대한미용학회지” The cuticle layer in hair follicles thickens during keratinization due to incomplete cytosol loss.
3 citations
,
May 1964 in “Nature” June 2025 in “Clinical and Experimental Dermatology” A 76-year-old man's grey hair turned back to its original color after radiotherapy.
63 citations
,
December 1988 in “International Journal of Dermatology” Vitiligo causes white skin patches and is linked to autoimmune issues.
A 15-year-old boy's smelly, yellow armpit hair improved with clindamycin treatment.
37 citations
,
October 2015 in “PeerJ” Perming significantly changes hair's molecular structure, while shampoo and conditioner do not.
1 citations
,
January 2024 in “Scientific reports (Nature Publishing Group)” Human hair was used to make biodegradable plastic films that could be useful for packaging and disposable products.
Gray hair affects hair's movement and appearance, making it less bouncy and more wavy.
18 citations
,
April 1989 in “Archives of Dermatology” Iron deficiency can cause hair color changes, which can be reversed with iron supplements.
150 citations
,
July 2001 in “Clinics in dermatology” Proper haircare and communication with doctors are key to managing hair loss and avoiding damage.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” Using enzymes to break down scalp hair follicles gets more stem cells for skin and hair growth than the old method.
67 citations
,
October 1997 in “Dermatologic Surgery” The EpiLight Hair Removal System removed about 60% of hair with some side effects, and more research is needed to confirm long-term effectiveness.
24 citations
,
October 2008 in “PubMed” Excessive sun exposure damages hair, causing protein loss and color changes.
21 citations
,
January 2010 in “International journal of trichology” Trichoscopy can diagnose monilethrix, a genetic hair defect causing hair thinning and loss.
13 citations
,
March 2019 in “Journal of cosmetic dermatology” Heat damages hair, with Asian hair losing more protein than Caucasian hair.
53 citations
,
January 2009 in “Journal of Investigative Dermatology” UVB radiation harms hair growth and health, causing cell death and other changes in human hair follicles.
6 citations
,
March 2015 in “Journal of The American Academy of Dermatology” Hair dye can make it hard to diagnose scalp conditions correctly.
June 2006 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.
May 2026 in “Zenodo (CERN European Organization for Nuclear Research)” The herbal hair dye with Barleria prionitis is a safe, effective, and natural alternative to chemical dyes.
August 2019 in “DOAJ (DOAJ: Directory of Open Access Journals)” Telogen effluvium is a common, distressing condition causing excessive hair shedding and has significant psychological effects on patients.
October 2022 in “Southeast Asian journal of health professionals” Hair greying is seen as a sign of aging; temporary fixes like hair dye are used, but a balanced diet and hair care can help manage it.
53 citations
,
July 2016 in “Cosmetics” Future hair cosmetics will be safer and more effective.
January 2021 in “Hair therapy & transplantation”
April 2016 in “Journal of Investigative Dermatology” Removing alkaline phosphatase from human skin cells hinders the creation of new hair follicles.
June 2025 in “Clinical Cosmetic and Investigational Dermatology” Gray hair can potentially be managed or reversed with treatments that boost melanin production and address nutritional deficiencies.
30 citations
,
February 2010 in “The journal of investigative dermatology/Journal of investigative dermatology” Plet-1 protein helps hair follicle cells move and stick to tissues.
12 citations
,
February 2019 in “Skin research and technology” White hair has less lipid content and absorbs water differently than brown hair.
Hair loss treatment using stem cells from baby teeth was effective for 75% of men tested, with mild side effects. A scoring system may predict how well this treatment works.
September 2018 in “PubMed” Hair becomes thinner, grayer, and may fall out more as people get older, and styling habits can worsen these effects.