52 citations,
February 2005 in “Biopolymers” Chemical hair straightening changes hair proteins and mostly fixes broken bonds.
45 citations,
December 2006 in “Biopolymers” Permanent waving weakens hair by altering its protein structure.
42 citations,
January 2011 in “Journal of Biomedical Optics” Infrared and Raman imaging can non-destructively analyze hair structure and help diagnose hair conditions.
29 citations,
August 2005 in “Biopolymers” L-cysteine slows down the breaking of bonds in hair due to electrostatic interactions.
25 citations,
May 2019 in “Heliyon” Hair treatments cause significant structural changes, especially with excessive heat, regardless of ethnicity.
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.
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.
12 citations,
June 2011 in “Journal of applied polymer science” L-phenylalanine and hydrolyzed eggwhite protein deeply penetrate human hair.
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.
3 citations,
September 2021 in “Data in brief” Bleaching hair changes its structure and weakens it, which is important for understanding hair damage and creating treatments.
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.
September 2023 in “Journal of The American Academy of Dermatology” Raman spectroscopy is promising for measuring and enhancing drug delivery in alopecia treatments.
January 2020 in “Asian Journal of Chemistry” Raman spectroscopy can identify finasteride polymorphs in tablets.
21 citations,
December 2016 in “European journal of pharmaceutics and biopharmaceutics” Nano-sized lipid particles increase dexamethasone's skin penetration and create a reservoir in the skin layers.
Hyaluronic acid in shampoo penetrated hair well, reduced frizz, and improved hair strength and moisture.
January 2021 in “Asian Journal of Pharmaceutical and Clinical Research” FT-Raman spectroscopy is effective for identifying drug polymorphs, ensuring quality and stability.
June 2012 in “International journal of scientific research” 35 citations,
July 2009 in “Optics express” Researchers created a new light source that improves chemical imaging by removing background noise.
23 citations,
June 2014 in “International Journal of Cosmetic Science” Glyoxylic acid is a safer alternative to formaldehyde for hair straightening and effectively changes hair structure.
13 citations,
January 2017 in “Cosmetics” Different tests are used to see how hair care products affect hair, and choosing the right test is important for accurate results.
12 citations,
May 2017 in “Journal of pharmaceutical and biomedical analysis” The method shows that zinc pyrithione and climbazole from anti-dandruff shampoo effectively reach the scalp.
6 citations,
May 2020 in “Molecules/Molecules online/Molecules annual” Yak belly hair has higher porosity and is less stiff than human hair, making it absorb dye better but less suitable as a direct substitute for hair dyeing.
6 citations,
September 2018 in “ACS applied bio materials” Calcium fatty acid deposits found in human hair can change its appearance and feel.
6 citations,
August 2014 in “Spectroscopy Letters” The analysis shows where minoxidil's atoms are likely to react and describes its electronic transitions and behavior with temperature changes.
October 2024 in “Cosmetics” ATG effectively reduces hair frizz without damaging hair strength.
August 2024 in “Cosmetics” K18® and Olaplex® both effectively repair bleached hair, improving its strength, smoothness, and overall health.
April 2024 in “Authorea (Authorea)” Understanding the nanoscale structure of skin fibrosis can improve knowledge of wound healing and tissue regeneration.
January 2024 in “International Journal of Cosmetic Science” A new method using 1,4-n-butylene dimaleate effectively repairs and strengthens damaged hair.
Yak hair stretches mainly due to macromolecules slipping past each other.
16 citations,
October 2003 in “Journal of applied polymer science” 2-iminothiorane hydrochloride improves hair waving permanence without damage.