48 citations
,
November 2002 in “Journal of biological chemistry/The Journal of biological chemistry” Genetic variations in hair keratin proteins exist but don't significantly affect hair structure.
January 2026 in “Molecules” A new perming method is less damaging to hair and works as well as traditional methods.
12 citations
,
February 2016 in “Biochemical and Biophysical Research Communications” Sulforaphane may help with hair growth by breaking down a hormone that causes hair loss.
June 2017 in “University of the Arts London Research Online (University of the Arts London)” Polymers help reduce damage and improve bleached hair when used during or after bleaching.
32 citations
,
January 1990 in “Clinical Endocrinology” Women with female pattern hair loss have higher levels of certain androgens, suggesting increased androgen exposure to hair follicles.
11 citations
,
December 2017 in “Orphanet Journal of Rare Diseases” A new mutation in the ST14 gene broadens the understanding of ichthyosis-hypotrichosis syndrome.
July 2025 in “Journal of Investigative Dermatology”
September 2025 in “International Journal of Cosmetic Science” Heat and UV exposure damage hair structure by altering keratins.
January 1996 in “Human Ecology Forum” Selenium is important for health but must be consumed in the right amount to avoid health issues.
4 citations
,
January 1981 in “PubMed” Hair medullary cells in mammals vary in complexity, with humans having more structured cells similar to inner root sheath cells.
May 2024 in “International Journal of Cosmetic Science” Disulfide bonds are crucial for hair's strength, especially when wet.
28 citations
,
November 2013 in “The FASEB journal” Mice with CBS deficiency are healthier on a low-methionine diet.
38 citations
,
April 2020 in “IntechOpen eBooks” Phenylalanine may help with depression but can cause issues if not properly processed.
14 citations
,
January 1984 in “Nutrition reports international”
8 citations
,
January 2016 in “Journal of fiber science and technology” Bleaching hair increases cysteic acid levels in a predictable way.
1 citations
,
January 1992 in “DNA sequence” Researchers found a non-functional sheep keratin gene due to mutations.
May 2023 in “Research Square (Research Square)” Patients with acne and insulin resistance have different blood metabolites compared to those with only acne, which could help in diagnosis and treatment.
19 citations
,
March 1961 in “Nature” A fatty acid/protein complex in human hair helps protect it from damage.
35 citations
,
August 2010 in “The American journal of pathology” Researchers created a new mouse model for studying Citrullinemia Type I and similar conditions, showing symptoms and treatment responses like those in humans.
128 citations
,
December 2006 in “Journal of Biological Chemistry” Altering SSAT affects fat metabolism and body fat in mice.
May 2025 in “OPAL (Open@LaTrobe) (La Trobe University)” Linoleic acid and magnesium are key in alopecia areata progression, and tofacitinib can help by affecting their pathway.
4 citations
,
December 2008 in “The Thai Journal of Veterinary Medicine” Zinc methionylglycinate improves dog hair and zinc levels better than zinc sulfate.
22 citations
,
August 2009 in “Evidence-based Complementary and Alternative Medicine” The composition with carnitine, thioctic acid, and saw palmetto extract may effectively reduce inflammation in hair follicle cells.
14 citations
,
November 2013 in “Journal of the American Society for Horticultural Science” Glycine slows main root growth but boosts root hair growth in habanero peppers.
87 citations
,
March 2014 in “Biochimica et Biophysica Acta (BBA) - Molecular and Cell Biology of Lipids” Cholesterol sulfate buildup due to a genetic mutation disrupts the skin barrier, leading to the scaling skin seen in X-linked ichthyosis.
16 citations
,
January 2017 in “Physical chemistry chemical physics/PCCP. Physical chemistry chemical physics” The 3D structure of a key hair protein was modeled, revealing specific helical structures and stabilization features.
16 citations
,
October 2009 in “Xenobiotica” The tested hair dye ingredients do not form harmful oxidized metabolites in the liver.
Age-related changes in scalp glands may affect hair health, but sulforaphane might help.
12 citations
,
July 2021 in “Scientific Reports” Glutamic acid helps increase hair growth in mice.