Hair coloring and bleaching can permanently break down hair protein and temporarily change its properties.
8 citations
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January 2018 in “Journal of cosmetic dermatology” Conditioners in hair dye reduce damage and improve combability.
September 2011 in “Daehan miyong hakoeji” Henna orange powder, especially with alkali, protects and colors hair better than oxidizing colorants.
2 citations
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January 2004 in “PubMed” Conditioners with PQ-10 soften the flat part of hair cuticles but harden the edges.
January 2014 in “University of the Arts London Research Online (University of the Arts London)” Certain ingredients can help protect hair color.
10 citations
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August 2021 in “Cosmetics” The best shampoo formula used 1% high-weight hyaluronic acid, 10% acidic sophorolipid, and 1% salt for effective hair conditioning and cleansing without sulfates or silicones.
161 citations
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July 2003 in “ACM Transactions on Graphics” Researchers developed a new model for more realistic computer graphics rendering of hair by considering how light scatters on hair fibers.
Researchers developed a new model for more realistic computer graphics of hair by considering how light scatters on hair fibers.
May 2018 in “Dermatologic Surgery” 
March 2023 in “JIIS (Jurnal Ilmiah Ibnu Sina): ilmu farmasi dan kesehatan” The best biotin hair tonic formula has 20% span 80, 9.47% tween 80, and 5% PEG 400.
15 citations
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January 2017 in “Pigment International” Early hair graying is often inherited and influenced by genetics, environment, and lifestyle, but treatment options are limited.
January 2026 in “Frontiers in Medicine” PP-PTKL may help treat hair greying, but more testing is needed.
August 2022 in “Zenodo (CERN European Organization for Nuclear Research)” The herbal hair dye effectively provides a natural reddish-brown color without synthetic chemicals.
June 2026 in “Zenodo (CERN European Organization for Nuclear Research)” June 2026 in “Zenodo (CERN European Organization for Nuclear Research)” 4 citations
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June 2022 in “Journal of cleaner production” New eco-friendly method strengthens and sets hair using light and causes less damage.
16 citations
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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.
3 citations
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March 2010 in “International Journal of Cosmetic Science” Functionalized silicones improve hair appearance, combing, and manageability.
May 2026 in “Brazilian Journal of Hair Health” The study investigates the effects of professional and at-home hair coloring treatments on hair fiber properties, specifically focusing on combability, color, and protein loss in dark-brown virgin hair strands. The research involved eight different treatments using bleaching powders, hydrogen peroxide, and permanent dyes. Results showed that bleaching caused the most significant color change and increased combing force by 46.6%, while coloration treatments improved combability by up to 46.5%. All treatments resulted in substantial protein loss, ranging from 5.1 to 16.6 mg albumin equivalents per gram of hair, compared to 0.7 mg in control strands. Bleaching was found to compromise hair structural integrity, whereas dye formulations with emulsifiers partially reduced damage and enhanced combability, though both processes led to significant keratin degradation.
January 2023 in “International journal of pharmacognosy and clinical research” The polyherbal oil made from natural ingredients improves hair health and appearance.
March 2026 in “International Journal of Science and Research Archive” Hair coloring in 2026 requires precise science and safe techniques.
June 2023 in “Zenodo (CERN European Organization for Nuclear Research)” 
47 citations
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January 2017 in “RSC Advances” Keratin peptides can change hair shape gently without harsh chemicals.
January 2024 in “Seven Editora eBooks” Different techniques measure hair properties to ensure cosmetic products work.
June 2021 in “Journal of Pharmaceutical Care Anwar Medika” The hair tonic made from cayenne pepper leaf extract is physically stable and suitable for use.
17 citations
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January 2015 in “Pharmacognosy Research” A herbal mix, especially with Jatamansi, effectively darkens gray hair.
29 citations
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December 2011 in “British Journal of Dermatology” A new hair treatment with caffeine and other ingredients makes hair thicker and less likely to break.
7 citations
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July 2004 in “International Journal of Cosmetic Science” Different hair types from various ethnic groups affect hair shine due to characteristics like thickness and shape.
1 citations
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April 2022 in “International Journal of Women's Dermatology” Classifying curl patterns might help doctors assess and treat hair loss better.