September 2025 in “International Journal of Cosmetic Science” Heat and UV exposure damage hair structure by altering keratins.
January 2024 in “Molecules (Basel. Online)” Juglone from walnut extracts may help repair damaged hair.
3 citations
,
January 2021 in “ScienceAsia” Using an enzyme and keratin treatment can significantly repair and strengthen damaged hair.
28 citations
,
June 2012 in “International Journal of Molecular Medicine” Radiation damages hair stem cells and changes keratin expression, with Krt5 as a potential marker for radiation effects.
5 citations
,
December 2020 in “International journal of biological macromolecules” Treatments improved hair surface and scale structure but didn't increase certain bonds in the hair cortex.
11 citations
,
February 2018 in “Amino acids” Copper and iron cause keratin damage in hair by converting methionine to homocysteine.
August 2023 in “Journal of Health and Beauty” K-30 treatment restores protein and weight in damaged hair, making it similar to healthy hair.
12 citations
,
October 2018 in “Biotechnology reports” Recombinant keratin K31 makes damaged hair thicker, stronger, and straighter.
20 citations
,
June 2012 in “British Journal of Dermatology” Bleaching hair damages protein structure, especially keratin, leading to weakened hair.
13 citations
,
March 2019 in “Journal of cosmetic dermatology” Heat damages hair, with Asian hair losing more protein than Caucasian hair.
12 citations
,
October 2007 in “PubMed” Keratin helps protect and strengthen hair, reducing damage and color fading.
3 citations
,
May 2012 in “Journal of Biological Macromolecules” Keratin film can effectively mimic human hair for testing hair damage.
2 citations
,
July 2013 in “Fashion business” Keratin essence protects and improves damaged hair.
September 2023 in “Journal of Natural Fibers” Drying hair with a microfiber towel better maintains hair strength and structure than using a cotton towel or blow-drier.
November 2001 in “PubMed” Perming, combing, and stretching damage hair by reducing keratin.
3 citations
,
July 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” Keratin 17 is important for skin's response to radiation, affecting many genes and cell division.
Anti-keratin antibody from cow milk makes damaged hair stronger and less likely to break.
10 citations
,
January 2012 in “Journal of Biological Macromolecules” Keratin film can effectively replace human hair for testing hair damage.
1 citations
,
January 2006 High temperatures and cosmetic processes can damage hair keratin, affecting its structure and strength.
January 2019 in “Durham e-Theses (Durham University)” Advanced microscopy shows hair damage and keratin proteins' roles, aiding future cosmetic treatments.
January 2013 in “Transactions of the Materials Research Society of Japan” CMADK reduces hair damage from bleaching and permanent waving.
10 citations
,
January 2011 in “Skin research and technology” Procyanidin oligomers can protect hair from oxidative damage and could be good for hair care products.
The keratin-based cream effectively repaired and improved damaged hair.
1 citations
,
April 2023 in “Langmuir” Damaged hair allows water to penetrate more easily, and fatty acids from shampoos can deposit on hair surfaces.
1 citations
,
January 2023 in “Biochemical and biophysical research communications” Keratin 79 is linked to liver damage and may help diagnose liver diseases.
To repair damaged hair, use products with proteins, lipids, and moisture like keratin, citric acid, and oils.
July 2025 in “Journal of Investigative Dermatology” BrdU speeds up hair follicle aging and reduces hair quality.
July 2025 in “Scientific Reports” Fermented grapeseed oil effectively repairs and protects chemically damaged hair.
April 2025 in “International Journal of Cosmetic Science” A new hair perming method avoids damage and lasts longer than traditional methods.
September 2018 in “University of the Arts London Research Online (University of the Arts London)” L-arginine, hydrolysed keratin, and cystine-silanol copolymer can help protect hair from damage during and after bleaching.