June 2024 in “ChemBioChem” Replenishing free 18-MEA can help restore damaged hair surfaces.
10 citations
,
January 2012 in “International Journal of Cosmetic Science” Thioglycolic acid mainly affects the unordered areas in hair structure.
51 citations
,
January 2007 in “The journal of investigative dermatology/Journal of investigative dermatology” Scientists discovered a unique hair protein, KAP24.1, with a special structure, found only in the upper part of hair cuticles.
January 2004 in “Analytical Sciences: X-ray Structure Analysis Online” The document explains how to make a compound called 3.BETA.-Benzoyloxy-4-pregnen-16.ALPHA.,17.ALPHA.-epoxy-6,20-dione and describes its crystal structure.
September 1978 in “PubMed” Chondroitin sulphate is more abundant than hyaluronic acid in skin and hair samples, except in gamma-keratosis.
36 citations
,
August 2011 in “Journal of dermatological science” Human hair has a protective lipid layer that can be damaged by moisture and treatments, affecting hair growth and health.
October 2025 in “International Journal of Cosmetic Science” Conditioners improve hair manageability but don't repair damage.
February 1999 in “Analytical Sciences” A new antiandrogen compound was made and its detailed three-dimensional shape was described.
August 2018 in “Journal of Investigative Dermatology” Polyunsaturated fatty acids, like arachidonic acid and eicosapentaenoic acid, can promote hair growth and may help treat hair loss.
19 citations
,
March 1961 in “Nature” A fatty acid/protein complex in human hair helps protect it from damage.
1 citations
,
December 1913 in “Biochemical Journal” Isocholesterol is a confirmed and recognized sterol.
August 2005 in “Microscopy and Microanalysis” Polymethylene wax in hair relaxers makes hair smooth and shiny with less damage.
April 2025 in “International Journal of Cosmetic Science” A new hair perming method avoids damage and lasts longer than traditional methods.
April 2026 in “Lithuanian University of Health Sciences” Cinnamic acid in hydrogels can effectively fight fungi but spreads less than in solution.
1 citations
,
January 2019 in “Archives of Clinical and Medical Case Reports” Changing hair's surface and structure can help protect its natural oils from being washed away.
4 citations
,
January 1994 in “Yakugaku zasshi” EPC-K is stable except at very acidic pH or when exposed to sunlight, and it can decompose in low ethanol concentrations.
December 2023 in “ACS Sustainable Chemistry & Engineering” Keratin can be successfully taken from human hair using a mix of choline chloride and ethanolamine.
2 citations
,
July 2013 in “Acervo Digital da Universidade Estadual Paulista (Universidade Estadual Paulista)” The shampoo effectively defines and models curls while reducing frizz and volume.
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.
7 citations
,
February 1998 in “Polymer journal” Keratin structure in hair is stable at pH 5-6 but disrupts between pH 6-7.
January 2026 in “Molecules” A new perming method is less damaging to hair and works as well as traditional methods.
49 citations
,
January 1972 in “Biochimica et Biophysica Acta (BBA) - Protein Structure”
March 2025 in “International Journal of Molecular Sciences” Free long-chain fatty acids can stimulate hair growth in mice.
8 citations
,
July 1977 in “Lipids” High levels of certain fats in rapeseed oil can reduce the skin's ability to produce prostaglandin E2 and cause hair loss and skin issues in rats.
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.
3 citations
,
January 2002 in “Springer eBooks” Alkaline hair relaxers damage hair, but cationic and non-ionic polymers can help reduce this damage.
May 2022 in “Current Enzyme Inhibition” Compound 7b is a promising candidate for treating benign prostatic hyperplasia and prostate cancer.
4 citations
,
July 2023 in “Analytical and Bioanalytical Chemistry” 421 citations
,
September 2003 in “Development” Stem cell behavior varies with stimuli, and lineage changes can happen without affecting stem cell division.