{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,29]],"date-time":"2026-08-29T15:15:19Z","timestamp":1788016519788,"version":"build-2784847793"},"reference-count":33,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2025,10,22]],"date-time":"2025-10-22T00:00:00Z","timestamp":1761091200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,10,22]],"date-time":"2025-10-22T00:00:00Z","timestamp":1761091200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100001348","name":"Agency for Science, Technology and Research","doi-asserted-by":"publisher","award":["A20G1a0046"],"award-info":[{"award-number":["A20G1a0046"]}],"id":[{"id":"10.13039\/501100001348","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001348","name":"Agency for Science, Technology and Research","doi-asserted-by":"publisher","award":["CRF\u2010ATR"],"award-info":[{"award-number":["CRF\u2010ATR"]}],"id":[{"id":"10.13039\/501100001348","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Intern J of Cosmetic Sci"],"published-print":{"date-parts":[[2026,4]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>This study aims to use electrokinetic analysis to investigate the deposition behaviour and conditioning efficacy of cationic surfactants on human hair, focusing on how surfactant structure, concentration and hair damage influence performance. It also aims to understand the mechanisms governing surfactant adsorption and their impact on hair manageability and health.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>\n                      This research employed streaming potential measurements\u2014including pH\u2010dependent, time\u2010dependent and concentration\u2010dependent zeta (\u03b6)\u2010potential studies\u2014alongside wet combing analyses and ATR\u2010FTIR spectroscopy to evaluate the adsorption affinity and conditioning effects of four cationic surfactants: behentrimonium chloride (BTMC), behentrimonium methosulfate (BTMS), hexadecyltrimethylammonium chloride (CTAC) and stearylalkonium chloride (STAC). A simplified model surface using silicon oxide (Si | SiO\n                      <jats:sub>2<\/jats:sub>\n                      ) wafers was also utilized to isolate the influence of hair's natural variability and fibrous structure.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Longer\u2010chain surfactants like BTMC showed superior deposition and conditioning due to stronger van der Waals interactions, while bulky groups in STAC hindered deposition. BTMC outperformed BTMS, likely due to the chloride counterion's higher mobility. BTMC and BTMS were superior against CTAC and STAC due to their longer carbon chain length. Wet combing analyses revealed that BTMC significantly reduced combing forces, improving manageability, whereas STAC fared the worst due to its low adsorption. However, ATR\u2010FTIR analysis indicated no reversal of oxidative damage, suggesting conditioners improve manageability without repairing structural damage.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>The study highlights the importance of surfactant molecular structure\u2014such as carbon chain length and counterion type\u2014in deposition efficiency and conditioning performance, providing valuable insights for developing more effective hair care formulations. By leveraging electrokinetic analyses in the form of streaming potential experiments, we were able to quantitatively assess adsorption behaviour, \u03b6\u2010potential changes and the dynamic interactions between surfactants and hair. These findings enhance the understanding of cationic surfactant\u2010hair interactions, offering practical implications for optimizing conditioners to improve user experience and hair health.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/ics.70038","type":"journal-article","created":{"date-parts":[[2025,10,23]],"date-time":"2025-10-23T05:35:58Z","timestamp":1761197758000},"page":"379-393","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Electrokinetic analysis reveals common conditioner ingredient interactions with human hair"],"prefix":"10.1111","volume":"48","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0364-0292","authenticated-orcid":false,"given":"Huijun Phoebe","family":"Tham","sequence":"first","affiliation":[{"name":"A*STAR Skin Research Labs (A*SRL) Agency for Science, Technology and Research (A*STAR)  Singapore City Singapore"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kah Yuen","family":"Yip","sequence":"additional","affiliation":[{"name":"A*STAR Skin Research Labs (A*SRL) Agency for Science, Technology and Research (A*STAR)  Singapore City Singapore"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thomas","family":"Luxbacher","sequence":"additional","affiliation":[{"name":"Anton Paar GmbH  Graz Austria"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0084-1753","authenticated-orcid":false,"given":"Roger L.","family":"McMullen","sequence":"additional","affiliation":[{"name":"Ashland Specialty Ingredients, G.P.  Bridgewater New Jersey USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"suffix":"Jr","given":"Thomas L.","family":"Dawson","sequence":"additional","affiliation":[{"name":"Center for Cell Death, Injury Regeneration, Department of Drug Discovery Biomedical Sciences and Biochemistry Molecular Biology Medical University of South Carolina  Charleston South Carolina USA"},{"name":"A*STAR Skin Research Labs (A*SRL) Agency for Science, Technology and Research (A*STAR) &amp; Skin Research Institute of Singapore (SRIS)  Singapore City Singapore"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,10,22]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-642-25611-0"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.3390\/polym15030608"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.4103\/0974-7753.153450"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.3390\/cosmetics7020026"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.cis.2014.05.007"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1111\/jocd.12454"},{"key":"e_1_2_8_8_1","doi-asserted-by":"publisher","DOI":"10.1046\/j.1467-2494.2000.00003.x"},{"key":"e_1_2_8_9_1","doi-asserted-by":"publisher","DOI":"10.1021\/bk-2013-1148.ch015"},{"key":"e_1_2_8_10_1","first-page":"135","article-title":"Sorption of quaternary ammonium surfactants by human hair","volume":"20","author":"Scott GV","year":"1969","journal-title":"J Soc Cosmet Chem"},{"key":"e_1_2_8_11_1","doi-asserted-by":"publisher","DOI":"10.1111\/ics.12704"},{"key":"e_1_2_8_12_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.colsurfb.2008.09.024"},{"key":"e_1_2_8_13_1","doi-asserted-by":"publisher","DOI":"10.1002\/9781119654926.ch13"},{"key":"e_1_2_8_14_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcis.2007.02.003"},{"key":"e_1_2_8_15_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1468-2494.2010.00540.x"},{"key":"e_1_2_8_16_1","first-page":"131","article-title":"The use of X\u2010ray fluorescent spectroscopy to study the influence of cationic polymers on silicone oil depositio from shampoo","volume":"52","author":"Gruber JV","year":"2001","journal-title":"J Cosmet Sci"},{"key":"e_1_2_8_17_1","doi-asserted-by":"publisher","DOI":"10.1111\/ics.12834"},{"key":"e_1_2_8_18_1","doi-asserted-by":"publisher","DOI":"10.1021\/am200671m"},{"key":"e_1_2_8_19_1","volume-title":"The ZETA Guide, Principles of the streaming potential technique","author":"Luxbacher T","year":"2014"},{"key":"e_1_2_8_20_1","doi-asserted-by":"publisher","DOI":"10.1111\/ics.12994"},{"key":"e_1_2_8_21_1","unstructured":"More than charge: the zeta potential reveals the adsorption of shampoo and conditioner on hair."},{"key":"e_1_2_8_22_1","doi-asserted-by":"publisher","DOI":"10.1080\/00218469508028154"},{"key":"e_1_2_8_23_1","volume-title":"Zeta potential of photochemically modified polymer surfaces. 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