19 citations
,
May 2008 in “Applied spectroscopy” Human hair has different protein structures in its cuticle and cortex.
70 citations
,
June 1998 in “Polymer” Permanent waving damages hair by disrupting its keratin structure.
57 citations
,
December 2011 in “Lasers in Surgery and Medicine” Selective photothermolysis can target sebaceous glands and may treat acne effectively.
30 citations
,
July 2000 in “PubMed” Hair has unevenly distributed proteins and lipids, with lipids mainly in the cuticle and proteins in the cortex and medulla.
29 citations
,
November 2015 in “Acta Biomaterialia” Infrared light can trigger drug release from gold nanoparticle carriers in hair follicles.
23 citations
,
June 2014 in “International Journal of Cosmetic Science” Glyoxylic acid is a safer alternative to formaldehyde for hair straightening and effectively changes hair structure.
21 citations
,
December 2011 in “Chungara” Mummy hair's chemical composition may not accurately show ancient people's health due to environmental contamination.
18 citations
,
August 2014 in “Lipids” Human hair has more unsaturated fats inside than on the surface, and certain lipids may help bind the outer and inner layers together.
13 citations
,
March 2020 in “Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy” Alopecic hair has more irregular structures and chemical changes than normal hair, reducing its strength.
13 citations
,
January 2017 in “Cosmetics” Different tests are used to see how hair care products affect hair, and choosing the right test is important for accurate results.
12 citations
,
July 2017 in “Journal of cosmetic dermatology” Infrared thermography, especially with dermoscopy, improves accuracy in diagnosing active hair loss due to inflammation.
11 citations
,
April 2013 in “SpringerPlus” Human skin's melanocytes respond to light by changing shape, producing pigments and hormones, which may affect sleep patterns.
9 citations
,
April 2009 in “Dermatologic surgery” Infrared light might help treat stubborn alopecia areata.
7 citations
,
March 2019 in “Journal of cosmetic dermatology” African hair has the most lipids, while Caucasian hair is more hydrated and stronger.
7 citations
,
January 2003 in “Journal of cosmetic and laser therapy” The filterless flashlamp-based system effectively delays hair regrowth and improves skin condition.
6 citations
,
October 2018 in “Lasers in Medical Science” Low-level laser therapy using near-infrared light may help heart conditions and promote healing by releasing nitric oxide.
5 citations
,
April 2022 in “Egyptian Journal of Chemistry” Sansevieria trifasciata shows promise as a natural treatment for hair loss.
5 citations
,
March 2012 in “Microscopy Research and Technique” UVB radiation changes the chemical makeup and dries out human hair but doesn't alter its appearance or texture.
4 citations
,
August 2016 in “PubMed” Repeated dyeing and shampooing cause hair color loss and damage.
3 citations
,
April 2022 in “Dermatologic Surgery” Light therapy with various colors helps treat hair loss.
3 citations
,
September 2021 in “Data in brief” Bleaching hair changes its structure and weakens it, which is important for understanding hair damage and creating treatments.
1 citations
,
June 2025 in “British Journal of Dermatology” Smartwatch light therapy may help regrow hair in alopecia areata.
Different types of hair loss and gender affect facial heat patterns, which may help diagnose and treat hair loss.
January 2026 in “American Journal of Medical and Clinical Research & Reviews” Different wavelengths of LED light are needed to treat different types of hair loss effectively.
July 2023 in “Medicina Estética Revista Científica de la Sociedad Española de Medicina Estética (SEME)” Infrared light, alone or with hyaluronic acid, effectively treats skin laxity with minimal side effects.
July 2023 in “International Journal of Molecular Biology and Biochemistry” The hair oil made with Arnica montana, castor, and mustard oils is effective.
September 2017 in “Journal of Investigative Dermatology” Thermal imaging is a useful non-invasive method to diagnose active inflammation in frontal fibrosing alopecia.
September 2017 in “Journal of Investigative Dermatology” HIF-1A may aid hair growth, Backhousia citriodora improves skin, autologous cells stabilize hair loss, infrared thermography assesses alopecia, and a new treatment preserves hair.
June 2017 in “DOAJ (DOAJ: Directory of Open Access Journals)” Combining finasteride with dimethyl-β-cyclodextrin improves its absorption and bioavailability.
August 2014 in “Acta Crystallographica” Different forms of finasteride dissolve and remain stable differently, affecting capsule quality.