2 citations
,
September 2004 in “International Journal of Cosmetic Science” Hair quality is genetically determined and linked to its composition and strength.
1 citations
,
March 2005 in “International Journal of Cosmetic Science” Twisting hair weakens it, but strength can be recovered at low twist levels.
March 2005 in “International Journal of Cosmetic Science” A new method helps understand hair shine and various products improve hair care.
12 citations
,
October 1954 in “Textile Research Journal” Hair absorbs alkali bromide salts and water, affecting its structure, with absorption decreasing at higher temperatures.
10 citations
,
September 2020 in “Biopolymers” Hair's structure and properties change with pH; acidic pH maintains strength and less swelling, while alkaline pH increases water content and swelling.
9 citations
,
January 1989 in “Sen'i Gakkaishi” Wool and hair fibers absorb moisture similarly due to their keratin structure, with the amount of non-crystalline areas affecting the moisture uptake.
4 citations
,
June 2021 in “Scientific Reports” Hair fiber shape and curvature are not significantly linked when ancestry is considered.
4 citations
,
April 1955 in “Textile Research Journal” The effectiveness of reducing agents on hair fibers depends on their electrode potentials.
October 2025 in “Dermatology and Therapy” Nutrafol® nutraceuticals improve hair thickness and strength.
Water and fatty acids affect hair's surface differently based on hair damage, and models can help understand hair-cosmetic interactions.
169 citations
,
June 2010 in “Molecular & cellular proteomics” Pectin biosynthesis is essential for the growth of cotton fibers and Arabidopsis root hairs.
48 citations
,
December 2004 in “Differentiation” Tooth papilla cells can help regenerate hair follicles and grow hair.
24 citations
,
June 2020 in “Industrial Crops and Products” Activated carbon fibers from Metaplexis japonica seed hair are highly effective for removing the dye methylene blue from water.
March 2005 in “International Journal of Cosmetic Science” DVI provides detailed 3D imaging of hair and shows how various products protect and enhance hair.
98 citations
,
June 2008 in “Human mutation” A genetic change in the EDAR gene causes the unique hair traits found in East Asians.
21 citations
,
January 1995 in “Journal of the American Institute for Conservation” A new method extracts red dyes from wool without damaging it, although it slightly weakens the wool.
13 citations
,
January 1995 in “Journal of the American Institute for Conservation” Researchers developed a less damaging way to extract red dyes from wool using EDTA and DMF, preserving the fiber's strength for further analysis.
40 citations
,
May 2016 in “Proceedings of the National Academy of Sciences of the United States of America” Changes in keratin make hair follicles stiffer.
9 citations
,
June 1947 in “Analytical Chemistry” Cold waving solutions quickly reduce cystine to cysteine in hair.
11 citations
,
September 2011 in “Biochemical journal” Neurotrophin-4 increases calcium current in specific mouse neurons through the PI3K pathway.
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.
35 citations
,
February 2006 in “Textile Research Journal” Enzymes xylanase and pectinase clean wool and specialty hair fibers effectively without damage, offering an eco-friendly alternative to soap and hot water.
10 citations
,
May 2012 in “PloS one” Low ERCC3 gene activity is linked to non-pigmented hair growth.
8 citations
,
June 1979 in “JAMA” Synthetic hair implants can cause severe infections and are risky.
6 citations
,
December 2013 in “Journal of Cosmetic Dermatology” Pigmented concealing powders can improve the look of hair density for people with hair loss but need daily application and may not work well in wet conditions.
5 citations
,
September 2017 in “Colloids and surfaces. B, Biointerfaces” Tying a knot can measure hair friction, useful for medical applications.
September 2024 in “Heliyon” Repeated hair dyeing significantly damages hair.
Hair fibers degrade and change color in very basic water.
19 citations
,
February 2016 in “Journal of Biological Chemistry” KCNQ potassium channels help control the sensitivity of touch receptors in the skin.
23 citations
,
September 2017 in “The journal of investigative dermatology/Journal of investigative dermatology” NF-κB is crucial for different stages and types of hair growth in mice.