12 citations,
February 1998 in “Gene” The B2 genes are crucial for hair growth in rats.
9 citations,
April 2019 in “Journal of structural biology” Hair's internal fibers are arranged in a pattern that doesn't let much water in, and treatments like oils and heat change how much water hair can absorb.
9 citations,
March 2009 in “European Journal of Dermatology” Schisandra nigra extract may help hair grow by stimulating cells and preventing hair follicle damage.
7 citations,
August 2018 in “Journal of cosmetic dermatology” Chemical hair straightening improves smoothness and shine but may cause side effects, suggesting a need for safer methods.
4 citations,
January 2007 in “Sen'i Gakkaishi” Permed hair degrades faster and shows more damage after protease treatment compared to untreated hair.
3 citations,
August 1980 in “Acs Symposium Series” Hair increases in size when it absorbs water, and treatments like bleaching affect how much water it can take in.
2 citations,
August 2019 in “International Journal of Cosmetic Science” Older age and certain lifestyles are linked to thinner, weaker hair, while how you see your hair relates to its thickness.
1 citations,
December 2021 in “International journal of research in dermatology” Dermatologists should learn more about shampoos to better treat hair and scalp issues.
A new system for classifying curly hair types using precise measurements can improve hair care products and cultural inclusion.
36 citations,
August 2011 in “Journal of dermatological science” Human hair has a protective lipid layer that can be damaged by moisture and treatments, affecting hair growth and health.
10 citations,
January 2012 in “Journal of biomedical optics” Melanin density affects hair color, and this method can help in cosmetic assessments and diagnosing hair diseases.
New methods to classify curly hair types were developed based on shape and strength.
September 2017 in “Journal of Investigative Dermatology” Hair care products used for 4 weeks made hair smoother.
August 2005 in “Microscopy and Microanalysis” Polymethylene wax in hair relaxers makes hair smooth and shiny with less damage.
75 citations,
November 1965 in “Textile research journal” Papain and bisulfite break down human hair by dissolving parts of it.
42 citations,
July 2015 in “Cosmetics” Nanotechnology improves hair care products by enhancing ingredient stability, targeting treatment, and reducing side effects, but more research on its toxicity is needed.
40 citations,
March 2017 in “The journal of investigative dermatology/Journal of investigative dermatology” Growing hair follicles have high mitochondrial activity and ROS in specific regions, aiding hair formation.
31 citations,
December 2002 in “Biochimica et biophysica acta. G, General subjects/Biochimica et biophysica acta. General subjects (Online)” The research found two types of calcium in human hair, one that varies among individuals and another that is consistent across people.
29 citations,
October 2017 in “Journal of proteomics” The research found specific proteins that affect fiber characteristics and hair growth in sheep and goats.
20 citations,
January 1979 in “JAMA” Fiber implantation for baldness is not recommended because it causes many problems and doesn't work well.
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 2019 in “Journal of cosmetic dermatology” Heat damages hair, with Asian hair losing more protein than Caucasian hair.
8 citations,
January 2012 in “International journal of polymer analysis and characterization/IJPAC. International journal of polymer analysis and characterization/IJPAC. International journal of analysis and characterization” Hydrogenated palm oil repairs and conditions damaged hair by preventing swelling.
2 citations,
December 2023 in “Royal Society of Chemistry eBooks” Hair is a complex organ, and understanding its detailed structure and growth phases is crucial for analyzing substances within it.
October 2012 in “Advanced Materials Research” Higher temperatures improve rabbit hair strength up to 50°C, but moisture weakens it.
45 citations,
December 2006 in “Biopolymers” Permanent waving weakens hair by altering its protein structure.
3 citations,
April 2011 in “Microscopy research and technique” Teratoma hair is similar to scalp hair but has a rougher surface and lower adhesive force.
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.
20 citations,
September 2018 in “Journal of colloid and interface science” Modified keratin binds better to hair, especially bleached hair.
November 2011 in “Advanced Materials Research” Adding 1% hair fibers to brake materials improves friction and wear, making them more effective.