10 citations
,
January 2012 in “International Journal of Cosmetic Science” Thioglycolic acid mainly affects the unordered areas in hair structure.
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.
19 citations
,
June 1999 in “Steroids” Different halogens on progesterone derivatives can either block or mimic male hormone effects, depending on their type and amount.
February 2020 in “Oxford University Press eBooks” The alpha-helix was confirmed as a key structure in proteins.
7 citations
,
January 1981 in “Springer eBooks” Certain small molecules and polymers can change hair's physical properties and how it feels by affecting the bonds within the hair.
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.
Chemical treatments weaken hair's thermal stability and structure.
September 2010 in “대한화장품학회지(J. Soc. Cosmet. Scientists Korea)” The study developed a reliable method to measure active ingredients in hair nourisher products using HPLC.
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.
January 2003 in “Dialnet (Universidad de la Rioja)” The study found ways to create important compounds for male health from olive waste.
87 citations
,
April 1973 in “Endocrinology” The chemicals 17βC and its methyl ester can block the effects of testosterone on hamster skin but not the effects of DHT.
4 citations
,
January 2006 in “International Journal of Cosmetic Science” The method shows how hair lipids form specific patterns and their roles in hair structure.
March 2026 in “Preprints.org” Chirality affects the structure, strength, and function of peptide-based hydrogels.
7 citations
,
December 1970 in “Biochimica et Biophysica Acta (BBA) - Protein Structure”
June 2024 in “ChemBioChem” Replenishing free 18-MEA can help restore damaged hair surfaces.
15 citations
,
May 2009 in “Steroids” Certain compounds reduced hamster flank organ size by inhibiting 5α-reductase, like finasteride, without affecting androgen receptors.
March 2010 in “International Journal of Cosmetic Science” Disulfide bonds affect the melting behavior of hair's crystalline structure, but hair retains some stability even after these bonds are broken.
11 citations
,
January 2016 in “Biointerphases” The hair's outermost surface has multiple layers of lipids and proteins.
January 2026 in “Molecules” A new perming method is less damaging to hair and works as well as traditional methods.
13 citations
,
November 2007 in “Journal of Structural Biology” Keratin heterodimers are preferred for their specific and structural advantages.
47 citations
,
June 1994 in “Experimental Cell Research” mHa2 and mHa3 keratins have different structures and roles in mouse hair and tongue tissues.
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
,
January 1981 High temperatures and certain chemicals can significantly change the amino acid content in human hair.
125 citations
,
February 1971 in “Biochemistry” Specific cross-linkages help make hair proteins stable and strong.
49 citations
,
January 1972 in “Biochimica et Biophysica Acta (BBA) - Protein Structure” July 2019 in “Ferroelectrics” More human hair protein makes the films weaker and less clear.
13 citations
,
March 2017 in “Skin Research and Technology” Formaldehyde damages curly hair more than glyoxylic acid.
9 citations
,
January 1999 in “Journal of Liquid Chromatography & Related Technologies” Best results found using acetonitrile, water, and trifluoroacetic acid or methanol mixture.
2 citations
,
January 2015 in “Sen'i Gakkaishi” Washing permed hair after using thioglycolic acid helps reform strong bonds, making hair stronger.
55 citations
,
January 2013 in “International Journal of Cosmetic Science” African hair's keratin structure is influenced by its higher lipid content.