October 2024 in “Cosmetics” Afro-textured hair needs personalized care due to its unique genetic traits.
21 citations,
April 1990 in “Journal of comparative neurology” The study found that nerve signals are stronger when there are more connection points, but not necessarily denser, along the nerve's path in the spine.
3 citations,
September 2020 in “Journal of cosmetic dermatology” Coconut oil makes hair stronger and more flexible than mineral oil.
September 2021 in “LAUTECH Journal of Civil and Environmental Studies” November 2022 in “International journal of trichology” Glyoxylic acid straighteners cause more protein loss but have similar hair strength effects as traditional alkaline straighteners.
82 citations,
January 1997 in “Forensic science international” Drugs can be incorporated into hair based on their chemical properties and hair pigmentation.
21 citations,
July 2010 in “International Journal of Cosmetic Science” Older people's hair becomes less shiny because it gets more uneven and curved.
Tan sheep's unique fur traits are determined during the embryonic stage by specific genes.
Water and fatty acids affect hair's surface differently based on hair damage, and models can help understand hair-cosmetic interactions.
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.
18 citations,
January 1994 in “Skin pharmacology and physiology” Sunlight damages hair, causing cuticle loss, protein changes, and discoloration.
10 citations,
October 2001 in “PubMed” The conclusion is that substances can penetrate hair fibers through multiple pathways, including both the cell membrane complex and the non-keratinous parts.
2 citations,
September 2004 in “International Journal of Cosmetic Science” Hair quality is genetically determined and linked to its composition and strength.
3 citations,
January 2021 in “ScienceAsia” Using an enzyme and keratin treatment can significantly repair and strengthen damaged hair.
27 citations,
February 1991 Cuticle damage doesn't affect hair's tensile strength; the cortex is responsible for it.
8 citations,
July 2019 in “The journal of investigative dermatology/Journal of investigative dermatology” Curly hair is mechanically different from straight hair and may need new testing methods.
January 2006 in “东华大学学报:英文版” Microwave plasma treatment improves yak hair dyeing.
19 citations,
July 2018 in “ACS biomaterials science & engineering” Bleaching and combing damage hair's surface and mechanical properties.
12 citations,
January 2014 in “Cell structure and function” Different combinations of human hair keratins affect how hair fibers form.
1 citations,
March 2013 in “PubMed” Glycylglycine makes hair softer by improving alignment and changing hair's internal properties.
7 citations,
August 2009 in “Applied Mathematics and Mechanics-English Edition” Hair fibers have fractal patterns with properties related to the golden mean, which may affect their functionality.
29 citations,
December 2011 in “British Journal of Dermatology” A new hair treatment with caffeine and other ingredients makes hair thicker and less likely to break.
13 citations,
March 2010 in “International Journal of Cosmetic Science” Hair coloring increases copper and calcium uptake, damaging hair and reducing shine.
52 citations,
August 1978 in “Journal of Applied Polymer Science” Human hair's ability to get wet is complex and can change with treatments, damage, and environment.
February 2019 in “PubMed” The research found that twisting hair fibers can show changes in stiffness and damage, and help tell apart different hair treatments.
The document concludes that understanding hair's composition and the effects of treatments can lead to better hair care products.
6 citations,
December 2018 in “International Journal of Cosmetic Science” Mexican women's hair is between Asian and Caucasian hair in thickness and shape, with varied strength and some damage.
7 citations,
January 1995 Silicone pretreatment protects hair from damage and reduces color fading without interfering with bleaching or dyeing.
April 2021 in “The journal of investigative dermatology/Journal of investigative dermatology” The anti-hair loss shampoo effectively promotes hair growth and improves hair quality.
August 2018 in “Journal of The American Academy of Dermatology” Aging significantly affects the hair and scalp of nonbalding Caucasian women, with changes that differ from male pattern baldness.