6 citations
,
November 2001 in “Der Hautarzt” Photothermolysis is the best method for permanent hair removal.
25 citations
,
October 2012 in “Dermatologic clinics” Laser and light treatments can effectively remove hair long-term.
11 citations
,
May 2016 in “PubMed” New imaging and testing methods can effectively assess hair shape changes and damage.
Different treatments change the strength and flexibility of human hair.
October 2023 in “Journal of the Endocrine Society” Estetrol helps keep scalp hair in the growth phase longer and improves hair follicle health by affecting the hair root and increasing stem cells.
Hair keratin treatments can be harmful, potentially causing health issues like skin reactions and cancer.
May 2026 in “International Journal of Biological Macromolecules”
Modern hair styling products don't repair hair but improve its surface and stability.
4 citations
,
March 2021 in “Journal of Surfactants and Detergents” Shampoo B, which uses water-soluble silicone, is better at detangling hair in wet conditions due to its two-layer conditioning film.
19 citations
,
April 2021 in “Journal of Cosmetic Dermatology” The treatment with silk proteins and linseed polysaccharides effectively protects and repairs chemically damaged hair.
5 citations
,
September 2021 in “PubMed” Hair removal methods vary in effectiveness and side effects, with electrolysis being the only permanent solution.
March 2016 in “The Korean Society of Beauty and Art” MSG-based hair hardener improves hair thickness, strength, and wave retention after perms.
September 2017 in “Journal of Investigative Dermatology” Photodynamic therapy can potentially remove nonpigmented hair by damaging hair follicles.
36 citations
,
October 2014 in “Langmuir” Bleaching hair removes its protective top layer and exposes more hydrophilic groups, changing its chemical surface and affecting how it interacts with products.
February 2019 in “IP Indian journal of clinical and experimental dermatology” Continuous use of hair relaxers and curlers can cause hair loss, dryness, dandruff, thinning, greying, and split ends.
Oxidized hair can naturally regain strength and stability over six months.
July 2007 in “International Journal of Cosmetic Science” The new polymer improves dyed hair's color, moisture, shine, and smoothness.
8 citations
,
January 2009 in “Transactions of the Materials Research Society of Japan” Water-soluble wool keratin can protect human hair from damage during treatments.
1 citations
,
January 2010 in “LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas)” Conditioners improved hair protein retention and combing ease, with some providing thermal protection.
15 citations
,
January 2011 in “International journal of trichology” Using a hot iron on wet hair can cause dry, brittle hair with air bubbles inside.
23 citations
,
April 1999 in “Dermatologic Clinics” Pulsed-intense light can significantly reduce hair, with effectiveness depending on treatment number and timing, and has mild side effects.
NaOH treatment improves hair strength and suitability for textiles.
8 citations
,
August 1993 in “Colloid & Polymer Science” The observed "toughening" in keratin was actually due to water evaporation, not a real change in keratin.
31 citations
,
June 2013 in “Journal of Cosmetic Dermatology” Electrolysis is the only FDA-recognized permanent hair removal method.
11 citations
,
June 2018 in “Annales de dermatologie et de vénéréologie” Hair care products can cause skin irritation and allergies.
May 2026 in “Applied Spectroscopy” Humidity affects hair structure changes during stretching.
January 1991 in “Acta Dermato Venereologica” A new method effectively visualizes keratin in hair without harsh chemicals.
23 citations
,
May 2010 in “Surface and interface analysis” Chemical treatments and UV radiation severely damage the lipid layer on hair.