{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,5]],"date-time":"2026-10-05T10:58:13Z","timestamp":1791197893412,"version":"4.1.0"},"reference-count":25,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2025,9,7]],"date-time":"2025-09-07T00:00:00Z","timestamp":1757203200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Contact Dermatitis"],"published-print":{"date-parts":[[2025,12]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Nickel and cobalt release from tools has recently been evidenced in German hairdressing salons. Comparable data were not available for German barbershops.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Objectives<\/jats:title>\n                    <jats:p>Screening of tools for nickel and cobalt release.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods\/Materials<\/jats:title>\n                    <jats:p>One hundred and forty\u2010one tools were tested in six barbershops located in Lower Saxony, Germany. A nickel spot test (reagent: dimethylglyoxime [CAS no. 95\u201045\u20104]) and a cobalt spot test (reagent: nitroso\u2010r salt [disodium\u20101\u2010nitroso\u20102\u2010naphthol\u20103,6\u2010disulphonate; CAS no. 525\u201005\u201003]) were used.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>35 of 141 tools overall (24.8%) released nickel and 3 of 141 tools overall (2.1%) released cobalt. Nickel release was found in 10 of 57 hair clippers, 9 of 13 tweezers, 8 of 11 sectioning clips, 3 of 14 straight shavers, 2 of 32 scissors, 2 of 4 tail combs and 1 of 2 shaving brushes. Cobalt release was detected in 2 of 14 straight shavers and 1 of 11 sectioning clips.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Tools in German barbershops have been identified as occupational sources of nickel and cobalt exposure. Nickel release was observed more frequently. Therefore, it is recommended that compliance with the EU nickel regulation is observed more strictly. In addition, the importance of measures to protect the skin at work should be communicated to barbers, e.g., within health pedagogical measures.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/cod.70031","type":"journal-article","created":{"date-parts":[[2025,9,8]],"date-time":"2025-09-08T04:21:01Z","timestamp":1757305261000},"page":"499-506","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Nickel and Cobalt Release From Hairdressing Tools in German Barbershops"],"prefix":"10.1111","volume":"93","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4090-6726","authenticated-orcid":false,"given":"Cara","family":"Bieck","sequence":"first","affiliation":[{"name":"Department of Dermatology, Environmental Medicine and Health Theory Osnabr\u00fcck University  Osnabr\u00fcck Germany"},{"name":"Department of Occupational Medicine, Hazardous Substances and Health Sciences Statutory Accident Insurance for the Health and Welfare Services  Hamburg Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kirsten","family":"Koopmann","sequence":"additional","affiliation":[{"name":"Department of Dermatology, Environmental Medicine and Health Theory Osnabr\u00fcck University  Osnabr\u00fcck Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0007-6326-5152","authenticated-orcid":false,"given":"Antje","family":"Alberts","sequence":"additional","affiliation":[{"name":"Department of Dermatology, Environmental Medicine and Health Theory Osnabr\u00fcck University  Osnabr\u00fcck Germany"},{"name":"Institute for Interdisciplinary Dermatological Prevention and Rehabilitation (iDerm) Osnabr\u00fcck University  Osnabr\u00fcck Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Valeska","family":"Buder","sequence":"additional","affiliation":[{"name":"Department of Occupational Medicine, Hazardous Substances and Health Sciences Statutory Accident Insurance for the Health and Welfare Services  Hamburg Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0007-6219-4022","authenticated-orcid":false,"given":"Grita","family":"Schedlbauer","sequence":"additional","affiliation":[{"name":"Department of Occupational Medicine, Hazardous Substances and Health Sciences Statutory Accident Insurance for the Health and Welfare Services  Hamburg Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1881-7302","authenticated-orcid":false,"given":"Albert","family":"Nienhaus","sequence":"additional","affiliation":[{"name":"Department of Occupational Medicine, Hazardous Substances and Health Sciences Statutory Accident Insurance for the Health and Welfare Services  Hamburg Germany"},{"name":"Institute for Health Services Research in Dermatology and Nursing (CVcare) University Medical Center Hamburg\u2010Eppendorf (UKE)  Hamburg 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