27 citations,
June 2005 in “The journal of investigative dermatology/Journal of investigative dermatology” The study found that variations in hair protein genes are likely due to evolutionary deletions or duplications.
5 citations,
January 2022 in “Scientific reports” The research identified two types of keratinocytes in chicken scales: one for hard scales and another for soft skin, with similarities to human skin differentiation.
Plant roots respond to fungus smells by possibly using certain proteins and a plant hormone to change root growth, but more research is needed.
11 citations,
January 2016 in “Biointerphases” The hair's outermost surface has multiple layers of lipids and proteins.
18 citations,
January 2018 in “Advances in experimental medicine and biology” Hair keratins evolved from ancient proteins, diversifying through gene changes, crucial for forming claws and later hair in mammals.
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.
5 citations,
January 2016 in “Genetics and Molecular Research” Researchers found 617 genes that behave differently in cashmere goat hair follicles, which could help understand hair growth.
38 citations,
October 2011 in “Analytical biochemistry” Hair proteins have weak spots in their α-helical segments.
January 2014 in “International Journal of Trichology” Hair is culturally and economically valuable, and its weight is now used to measure the effectiveness of hair growth treatments.
December 2021 in “Journal of natural fibers” The conclusion is that new methods for isolating hair cuticle cells and removing the cuticle layer are effective and convenient.
August 2017 in “DOAJ (DOAJ: Directory of Open Access Journals)” The complex treatment for hair loss was found to be effective.
4 citations,
August 2014 in “Journal of molecular structure” Chemical treatments on bleached black hair change its internal structure by breaking and reforming bonds, and treatments with hydrolyzed eggwhite protein help repair it.
April 2018 in “Journal of Investigative Dermatology” Mint water extract boosts protective enzymes in skin cells.
20 citations,
December 2012 in “Journal of molecular structure” The study found that thioglycolic acid breaks down hair bonds more consistently than l-cysteine, which is less damaging to hair.
January 1974 in “Nippon Nōgei Kagakukaishi/Nihon Nougei Kagakkaishi” Applying L-methionine and L-serine to the skin promotes the most hair growth.
May 2015 in “Cancer research” After chemotherapy for early breast cancer, 33.4% of patients had long-term significant hair loss, with some hair regrowth over time, but treatments for hair loss were largely ineffective.
75 citations,
March 2018 in “Molecules/Molecules online/Molecules annual” L-Cysteine may have health benefits, but its effectiveness is still debated due to limited clinical trial data.
2 citations,
December 2019 in “Textile Research Journal” L-cysteine and ultrasound successfully improved rabbit hair fibers for industrial use.
March 2021 in “Juniper Online Journal Material Science” Energy healing treatment improved L-cysteine's stability, solubility, bioavailability, and shelf-life.
The supplement improved hair density and overall hair beauty.
2 citations,
February 2016 in “Vestnik dermatologii i venerologii” The comprehensive treatment with biomimetic peptide lotion was effective for hair loss.
98 citations,
October 2012 in “Dermatologic Clinics” Eating the right nutrients can improve hair health, but taking extra supplements usually doesn't help unless you have a deficiency.
18 citations,
January 2008 in “Sen'i Gakkaishi” Thioglycolic acid and L-cysteine change hair structure differently during perms, affecting hair strength and curling efficiency.
20 citations,
March 2013 in “Journal of Lipid Research” The research explains how a human enzyme binds and processes its substrate, which could relate to its role in biological functions and hair loss.
3 citations,
April 2011 in “Neuropsychiatry” Behavioral therapy, N-acetyl cysteine, and olanzapine may help treat trichotillomania.
12 citations,
January 2013 in “Indian Journal of Dermatology” Monilethrix is a rare genetic hair disorder that's hard to treat.
October 2006 in “Clinical Cancer Research” Antioxidants can block the cancer-fighting effects of doxorubicin.
17 citations,
December 2002 in “Biochemical and biophysical research communications” Scientists found out how a specific protein in human hair cuticles behaves and is structured.
9 citations,
October 2008 in “Mutation research” N-acetyl-L-cysteine (NAC) can prevent DNA damage and protect cells from harm.
January 2020 in “Korean journal of ophthalmology/Korean Journal of Ophthalmology” Minoxidil increases cell layer permeability by reducing tight junction proteins and raising ROS levels.