July 2025 in “Journal of Cosmetic Dermatology” The model shows how heat damages hair, helping test hair care products.
January 2024 in “Deleted Journal” Essential oils may help hair health but lack strong scientific proof and can cause allergic reactions.
2 citations
,
July 2023 in “Cosmetics” Surfactants in shampoos and conditioners remove some but not all lipids from hair, and more research is needed to understand their full impact.
3 citations
,
February 2023 in “ACS omega” Grape seed oil improved hair quality the most, followed by rosehip and safflower seed oils, and reduced damage from shampoo.
1 citations
,
November 2022 in “Molecules/Molecules online/Molecules annual” Low-molecular weight hyaluronate can make damaged hair stronger.
5 citations
,
May 2022 in “Fashion and Textiles” Hair conditioners with argan oil or camellia oil improve the strength and color of bleached hair.
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.
25 citations
,
May 2019 in “Cosmetics” 18-MEA and cationic surfactants can restore and maintain hair's hydrophobic nature, improving its beauty and feel.
13 citations
,
September 2017 in “International Journal of Cosmetic Science” Thioglycerol treatment at pH 9.0 with ammonia causes less hair damage and better waving than thioglycolic acid.
13 citations
,
May 2016 in “International journal of biological macromolecules” Keratin's mechanical properties are influenced by hydrogen bonds and secondary structure, and can be improved with the SPD-2 peptide.
13 citations
,
June 2014 in “Experimental Mechanics”
45 citations
,
December 2006 in “Biopolymers” Permanent waving weakens hair by altering its protein structure.
53 citations
,
March 2006 in “Biopolymers” TTD hair is brittle due to fewer sulfur amino acids and unstable disulfide bonds.