42 citations
,
April 2008 in “Acta materialia” Different ethnicities and treatments affect human hair strength and structure.
67 citations
,
December 2015 in “Journal of the National Comprehensive Cancer Network” The guidelines aim to find treatable prostate cancer early while avoiding unnecessary tests and treatments.
21 citations
,
July 2011 in “Journal of the American Academy of Dermatology” A man developed a rash similar to pityriasis rubra pilaris after starting sorafenib for cancer, possibly due to the drug's effect on skin cells.
12 citations
,
August 2002 in “Archives of Dermatology” 3 citations
,
September 2001 in “Dermatologic Surgery” Adding a 5 W CO2 laser to the Er:YAG laser improved bleeding control without harming hair growth or causing damage.
1 citations
,
September 2001 in “Dermatologic Surgery” The 5 W CO2 laser addition improved hemostasis without harming hair growth or causing damage.
December 2019 in “C&EN Global Enterprise” Thicker hair isn't always stronger.
January 2025 in “International Journal of Trichology” Trichotillomania can occur in unusual patterns and sites, highlighting the need for awareness and treatment options.
12 citations
,
July 2016 in “British journal of dermatology/British journal of dermatology, Supplement” Different hair fiber development might explain why hair loss severity varies in patients with a specific genetic mutation, and treatments that thicken hair could help.
Use gentle products and nourishing masks to keep thin hair strong and voluminous.
December 2025 in “Russian Journal of Skin and Venereal Diseases” Thinner hair follicle structures are linked to non-scar alopecia.
4 citations
,
November 2016 in “The Journal of Dermatology” Pili torti hair is fragile due to loose keratin filaments and weak disulfide bonds.
August 2007 in “Microscopy and Microanalysis” Hair fibers break by cuticle cell slipping, shape changing, cuticle fraying, and surface cracking when stretched under specific conditions.
Hair feels different when touched and rubs together in various ways.
16 citations
,
April 2017 in “ACM Transactions on Graphics” Light scatters differently from elliptical hair fibers than from circular ones, and a new model better predicts this behavior, especially for shiny highlights.
13 citations
,
May 2016 in “International journal of biological macromolecules” Keratin's mechanical properties are influenced by hydrogen bonds and secondary structure, and can be improved with the SPD-2 peptide.
22 citations
,
January 1985 Water makes hair more flexible, especially the outer layer.
November 2017 in “Pediatrics in Review” A 4-year-old girl with hair loss was diagnosed with early-onset trichotillomania and improved with behavioral interventions.
April 2023 in “Journal of Investigative Dermatology” Muscle around hair follicles controls hair loss by releasing a signal that causes cell death.
1 citations
,
January 2014 in “International Journal of Trichology” A patient with a rare hair condition and skin disorder showed hair improvement after treatment.
January 2004 in “Nederlands Tijdschrift voor Dermatologie & Venereologie” Female pattern hair loss causes thinning hair on top of the scalp, treatable with limited success.
March 2020 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” The dermal sheath's contraction is crucial for hair follicle regression and stem cell relocation.
A drug helped quickly reduce a movement disorder, experts debated the severity of Raynaud phenomenon, and rapid weight loss was linked to temporary hair loss with good recovery.
February 2012 in “Clinical and Experimental Dermatology” Many adult women experience unexplained excessive hair shedding, often starting before age 40.
September 1972 in “大会学術講演梗概集. 構造系” The document explains common hair disorders and the basics of hair anatomy and life cycle.
8 citations
,
February 2005 in “British Journal of Haematology” Chemotherapy caused the patient's hair to have alternating thick and thin segments.
34 citations
,
October 1982 in “Journal of applied polymer science” Moisture content significantly affects how human hair breaks.
December 2025 in “Russian Journal of Skin and Venereal Diseases” Hair follicles are thinner in alopecia patients, especially in alopecia areata.
4 citations
,
January 2017 in “Annals of Dermatology” Frequent hairdryer use may worsen hair fragility in people with Pili Annulati.
1 citations
,
January 2018 in “Acta dermato-venereologica” A teenager's hair with alternating white and dark bands, known as Pili annulati, is a genetic condition that is usually harmless and often considered attractive.