{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,22]],"date-time":"2026-06-22T11:05:22Z","timestamp":1782126322726,"version":"3.54.5"},"reference-count":15,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2026,1,20]],"date-time":"2026-01-20T00:00:00Z","timestamp":1768867200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"},{"start":{"date-parts":[[2026,1,20]],"date-time":"2026-01-20T00:00:00Z","timestamp":1768867200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Contact Dermatitis"],"published-print":{"date-parts":[[2026,5]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Hairdressers are frequently exposed to shampoos, both from neat liquid products and dilutions, often with unprotected hands. Shampoos usually contain preservatives. While the level of preservation is guided by risk assessment based on typical consumer exposure, this will underestimate sensitization risk in hairdressers. Lower exposure or avoidance of preservative\u2010containing hair cosmetic products appears important for primary prevention of work\u2010related allergic contact dermatitis among hairdressers.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Objectives<\/jats:title>\n                    <jats:p>To assess the preservatives (Annex V of the EU Cosmetics Regulation (EC 1223\/2009)) used in solid shampoos, compare these to preservatives present in liquid shampoos for professional use, and determine the presence of ingredients with \u201cantimicrobial\u201d function in solid shampoo.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>A physical store check and survey of online sales platforms was performed in four European countries in late 2024. Along with product descriptors, the full INCI labelling was recorded from package labels (or corresponding summaries online) and collected in a spreadsheet.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      The sample included 172 solid shampoos from various retail sources and 259 liquid shampoos from one online marketplace for professional users. Among solid shampoos, preservatives were found in 31.4%; if \u201cantimicrobial\u201d additives are additionally considered, this share increased to 41.3%. Benzyl alcohol (\n                      <jats:italic>n<\/jats:italic>\n                      \u2009=\u200929) and sodium benzoate (\n                      <jats:italic>n<\/jats:italic>\n                      \u2009=\u200918) were the most common preservatives, benzyl benzoate the most common \u201cantimicrobial\u201d (\n                      <jats:italic>n<\/jats:italic>\n                      \u2009=\u20098). By contrast, all liquid shampoos contained (multiple) preservatives.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Solid shampoo shows potential to provide a less\u2010allergenic working environment for hairdressers. Practical aspects should next be addressed to contribute to broader use of solid shampoos.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/cod.70085","type":"journal-article","created":{"date-parts":[[2026,1,21]],"date-time":"2026-01-21T07:08:11Z","timestamp":1768979291000},"page":"524-530","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Solid Shampoo Is Mostly Not Preserved, in Contrast to Liquid Shampoos Used in Hairdressing\u2014A Market Survey in Four European Countries"],"prefix":"10.1111","volume":"94","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4498-3710","authenticated-orcid":false,"given":"Wolfgang","family":"Uter","sequence":"first","affiliation":[{"name":"Department of Medical Informatics Biometry and Epidemiology, Friedrich\u2010Alexander\u2010Universit\u00e4t Erlangen\u2010N\u00fcrnberg  Erlangen Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7576-3884","authenticated-orcid":false,"given":"Anders B.","family":"Funch","sequence":"additional","affiliation":[{"name":"LEO Foundation Skin Immunology Research Center, Department of Immunology and Microbiology, Faculty of Health and Medical Sciences University of Copenhagen  Copenhagen Denmark"},{"name":"Swiss Institute of Allergy and Asthma Research (SIAF) University of Zurich  Davos Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2442-5735","authenticated-orcid":false,"given":"Mikkel Bak","family":"Jensen","sequence":"additional","affiliation":[{"name":"National Allergy Research Centre, Department of Dermatology and Allergy Herlev and Gentofte Hospital  Copenhagen Denmark"},{"name":"Institute of Clinical Medicine, Faculty of Health Science University of Copenhagen  Copenhagen Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2989-9198","authenticated-orcid":false,"given":"Christoffer Kursawe","family":"Larsen","sequence":"additional","affiliation":[{"name":"National Allergy Research Centre, Department of Dermatology and Allergy Herlev and Gentofte Hospital  Copenhagen Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6936-3895","authenticated-orcid":false,"given":"Ying X.","family":"Teo","sequence":"additional","affiliation":[{"name":"Department of Cutaneous Allergy St John's Institute of Dermatology, Guy's and St Thomas' NHS Foundation Trust  London UK"},{"name":"Department of Dermatology University Hospitals Southampton NHS Foundation Trust  Southampton UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3537-8463","authenticated-orcid":false,"given":"Jeanne D.","family":"Johansen","sequence":"additional","affiliation":[{"name":"National Allergy Research Centre, Department of Dermatology and Allergy Herlev and Gentofte Hospital  Copenhagen Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9951-5896","authenticated-orcid":false,"given":"Carola","family":"Lid\u00e9n","sequence":"additional","affiliation":[{"name":"Institute of Environmental Medicine, Karolinska Institutet  Stockholm Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5048-4635","authenticated-orcid":false,"given":"Ian R.","family":"White","sequence":"additional","affiliation":[{"name":"Department of Cutaneous Allergy St John's Institute of Dermatology, Guy's and St Thomas' NHS Foundation Trust  London UK"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,1,20]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1111\/cod.14055"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1111\/cod.70079"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1111\/cod.14363"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1111\/ddg.13099"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1111\/cod.12519"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600\u20100536.2009.01612.x"},{"key":"e_1_2_8_8_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600\u20100536.2011.01979.x"},{"key":"e_1_2_8_9_1","doi-asserted-by":"publisher","DOI":"10.1111\/cod.12164"},{"key":"e_1_2_8_10_1","doi-asserted-by":"publisher","DOI":"10.1111\/cod.13550"},{"key":"e_1_2_8_11_1","doi-asserted-by":"publisher","DOI":"10.1111\/cod.14831"},{"key":"e_1_2_8_12_1","doi-asserted-by":"publisher","DOI":"10.1111\/cod.12683"},{"key":"e_1_2_8_13_1","doi-asserted-by":"publisher","DOI":"10.1111\/bjd.13751"},{"key":"e_1_2_8_14_1","doi-asserted-by":"publisher","DOI":"10.1136\/oem.58.6.392"},{"key":"e_1_2_8_15_1","volume-title":"Untersuchungen zur Abh\u00e4ngigkeit der Sensibilisierungen gegen wichtige Allergene von arbeitsbedingten sowie individuellen Faktoren (Schriftenreihe der Bundesanstalt f\u00fcr Arbeitsschutz und Arbeitsmedizin \u2010 Forschung Fb 949)","author":"Uter W.","year":"2002"},{"key":"e_1_2_8_16_1","unstructured":"SCCS (Scientific Committee on Consumer Safety) \u201cSCCS Notes of Guidance for the Testing of Cosmetic Ingredients and Their Safety Evaluation 12th Revision 15 May 2023 Corrigendum 1 on 26 October 2023 Corrigendum 2 on 21 December 2023. Vol SCCS\/1647\/22. 12th ed\u201d(2023) https:\/\/health.ec.europa.eu\/publications\/sccs\u2010notes\u2010guidance\u2010testing\u2010cosmetic\u2010ingredients\u2010and\u2010their\u2010safety\u2010evaluation\u201012th\u2010revision_en."}],"container-title":["Contact Dermatitis"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/cod.70085","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1111\/cod.70085","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/cod.70085","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,13]],"date-time":"2026-04-13T00:16:49Z","timestamp":1776039409000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/cod.70085"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,1,20]]},"references-count":15,"journal-issue":{"issue":"5","published-print":{"date-parts":[[2026,5]]}},"alternative-id":["10.1111\/cod.70085"],"URL":"https:\/\/doi.org\/10.1111\/cod.70085","archive":["Portico"],"relation":{},"ISSN":["0105-1873","1600-0536"],"issn-type":[{"value":"0105-1873","type":"print"},{"value":"1600-0536","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,1,20]]},"assertion":[{"value":"2025-09-09","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2025-12-08","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-01-20","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}