ArticleContact dermatitis2025
Nickel and Cobalt Release From Hairdressing Tools in German Barbershops.
Article in Contact dermatitis, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Clinical Factors Associated With Current Relevance in Allergic Contact Dermatitis: Development of Predictive Models Based on Data From the Spanish Contact Dermatitis Register (REIDAC).Contact dermatitis · 2026Observational
- A Parade of Persistent and Emerging Contact Allergens - A Clinical Update.Current allergy and asthma reports · 2026Review
- Identifying early-life, environmental, and social stressors as key predictors of U.S. respiratory failure mortality: a machine learning study.Frontiers in public health · 2026Article
- Nickel and Cobalt Release From Hairdressing Tools in German Barbershops.Contact dermatitis · 2025Article
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundNickel and cobalt release from tools has recently been evidenced in German hairdressing salons. Comparable data were not available for German barbershops.
objectivesScreening of tools for nickel and cobalt release. METHODS/MATERIALS: One hundred and forty-one tools were tested in six barbershops located in Lower Saxony, Germany. A nickel spot test (reagent: dimethylglyoxime [CAS no. 95-45-4]) and a cobalt spot test (reagent: nitroso-r salt [disodium-1-nitroso-2-naphthol-3,6-disulphonate; CAS no. 525-05-03]) were used.
results35 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.
conclusionsTools 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.
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