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Burnett CL, Bergfeld WF, Belsito DV, Cohen D, Klaassen CD, Liebler DC, Marks JG, Peterson LA, Shank RC, Slaga TJ, Snyder PW, Heldreth B. Amended Safety Assessment of Methylisothiazolinone as Used in Cosmetics. Int J Toxicol 2021; 40:5S-19S. [PMID: 34259065 DOI: 10.1177/10915818211015795] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The Expert Panel for Cosmetic Ingredient Safety (Panel) reassessed the safety of Methylisothiazolinone, which functions as a preservative in cosmetics. The Panel reviewed relevant animal and human data provided in this safety assessment, and data from the previously published safety assessments of Methylisothiazolinone, and concluded that Methylisothiazolinone is safe for use in rinse-off cosmetic products at concentrations up to 100 ppm (ie, 0.01%) and safe in leave-on cosmetic products when they are formulated to be nonsensitizing, which may be determined based on a quantitative risk assessment or similar methodology.
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Affiliation(s)
| | | | | | - David Cohen
- Expert Panel for Cosmetic Ingredient Safety Member
| | | | | | - James G Marks
- Expert Panel for Cosmetic Ingredient Safety Former Member
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Contact Allergy-Emerging Allergens and Public Health Impact. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17072404. [PMID: 32244763 PMCID: PMC7177224 DOI: 10.3390/ijerph17072404] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 03/17/2020] [Accepted: 03/30/2020] [Indexed: 02/07/2023]
Abstract
Contact allergy (sensitisation) and allergic contact dermatitis (ACD) resulting from it have a considerable public health impact. For the present review, all pertinent articles were systematically searched via Medline and Web of Science™; additionally, all available issues of the journals "Contact Dermatitis" and "Dermatitis" were manually searched, covering the years 2018-2019, thereby extending and re-focusing a previous similar review. New allergens, or previously described allergens found in a new exposure context or of other current importance, are described in sections according to substance classes, e.g., metals, preservatives, fragrances. As a common finding in many investigations, a lack of information on product composition has been noted, for instance, regarding a newly described allergen in canvas shoes (dimethylthiocarbamylbenzothiazole sulfide) and, most notably, absence of co-operation from manufacturers of glucose-monitoring devices and insulin pumps, respectively. These latter devices have been shown to cause severe ACD in a considerable number of diabetic patients caused by the liberation of isobornyl acrylate and N,N'-dimethylacrylamide, respectively, as demonstrated by an international collaboration between dermatologists and chemists. Improved and complete ingredient labelling for all types of products, and not just cosmetics, must be put on the legislative agenda.
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Belhareth K, Korbi M, Belhadjali H, Soua Y, Youssef M, Zili J. Methylisothiazolinone in cosmetic products in Tunisia. Contact Dermatitis 2019; 82:128-129. [PMID: 31591724 DOI: 10.1111/cod.13410] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Revised: 09/11/2019] [Accepted: 09/28/2019] [Indexed: 12/01/2022]
Affiliation(s)
- Kamar Belhareth
- Dermatology Department, University Hospital Fattouma Bourguiba, University of Medicine, University of Monastir, Monastir, Tunisia
| | - Mouna Korbi
- Dermatology Department, University Hospital Fattouma Bourguiba, University of Medicine, University of Monastir, Monastir, Tunisia
| | - Hichem Belhadjali
- Dermatology Department, University Hospital Fattouma Bourguiba, University of Medicine, University of Monastir, Monastir, Tunisia
| | - Yosra Soua
- Dermatology Department, University Hospital Fattouma Bourguiba, University of Medicine, University of Monastir, Monastir, Tunisia
| | - Monia Youssef
- Dermatology Department, University Hospital Fattouma Bourguiba, University of Medicine, University of Monastir, Monastir, Tunisia
| | - Jameleddine Zili
- Dermatology Department, University Hospital Fattouma Bourguiba, University of Medicine, University of Monastir, Monastir, Tunisia
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Uter W, Aalto-Korte K, Agner T, Andersen KE, Bircher AJ, Brans R, Bruze M, Diepgen TL, Foti C, Giménez Arnau A, Gonçalo M, Goossens A, McFadden J, Paulsen E, Svedman C, Rustemeyer T, White IR, Wilkinson M, Johansen JD. The epidemic of methylisothiazolinone contact allergy in Europe: follow-up on changing exposures. J Eur Acad Dermatol Venereol 2019; 34:333-339. [PMID: 31419348 DOI: 10.1111/jdv.15875] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 07/19/2019] [Indexed: 12/21/2022]
Abstract
BACKGROUND Methylisothiazolinone (MI) has caused an unprecedented epidemic of contact allergy in Europe and elsewhere. Subsequently, regulatory action has been taken, at least in Europe, aiming at reducing risk of MI sensitization. OBJECTIVE To follow-up on the prevalence of contact allergy to MI in consecutively patch tested patients and assess the spectrum of products containing MI or methylchloroisothiazolinone (MCI)/MI in patients positive to MI which elicited current allergic contact dermatitis. METHODS A cross-sectional survey was performed in 2016 and 2017, including all adult patients patch tested with the baseline series (including MI 0.2% aq.) between 1 May and 31 October at 14 centres in 11 European countries. Patients with positive reactions (+ to +++) to MI were further examined regarding history, clinical characteristics and eliciting products, which were categorized into 34 types and 4 classes (leave-on, rinse-off, household, occupational). The results were compared with the reference year 2015. RESULTS A total of 317 patients, n = 202 of 4278 tested in 2016 (4.72%) and n = 115 of 3879 tested in 2017 (2.96%), had positive reactions to MI; the previous result from 2015 was 5.97% (P < 0.0001). The share of currently relevant contact allergy among all positive reactions declined significantly as well (P = 0.0032). Concerning product classes, a relative decline of leave-on and a relative increase of rinse-off and household products was noted. CONCLUSION The prevalence of MI contact allergy decreased by 50% from 2015 to 2017. As a consequence of regulation, the share of cosmetics products (leave-on in particular) eliciting allergic contact dermatitis is decreasing. The chosen method of analysing causative products in sensitized patients has proven useful to monitor effects of intervention.
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Affiliation(s)
- W Uter
- Department of Medical Informatics, Biometry and Epidemiology, University of Erlangen/Nürnberg, Erlangen, Germany
| | - K Aalto-Korte
- Occupational Medicine, Finnish Institute of Occupational Health, Helsinki, Finland
| | - T Agner
- Department of Dermatology, Bispebjerg Hospital, University of Copenhagen, Copenhagen, Denmark
| | - K E Andersen
- Department of Dermatology and Allergy Centre, Odense University Hospital, University of Southern Denmark, Odense, Denmark
| | - A J Bircher
- Department of Dermatology, University Hospital Basel, Basel, Switzerland
| | - R Brans
- Institute for Interdisciplinary Dermatological Prevention and Rehabilitation (iDerm) at the University of Osnabrück, Osnabrück, Germany
| | - M Bruze
- Department of Occupational and Environmental Dermatology, Skåne University Hospital, Lund University, Malmö, Sweden
| | - T L Diepgen
- Department of Social Medicine, Occupational and Environmental Dermatology, University of Heidelberg, Heidelberg, Germany
| | - C Foti
- Unit of Dermatology, Department of Biomedical Science and Human Oncology, University of Bari, Bari, Italy
| | - A Giménez Arnau
- Department of Dermatology, Hospital del Mar, IMIM, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - M Gonçalo
- Department of Dermatology, University Hospital and Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - A Goossens
- Contact Allergy Unit, Department of Dermatology, University Hospital KU Leuven, Leuven, Belgium
| | - J McFadden
- Guy's Hospital, St John's Institute of Dermatology, London, UK
| | - E Paulsen
- Department of Dermatology and Allergy Centre, Odense University Hospital, University of Southern Denmark, Odense, Denmark
| | - C Svedman
- Department of Occupational and Environmental Dermatology, Skåne University Hospital, Lund University, Malmö, Sweden
| | - T Rustemeyer
- Department of Dermatology, Amsterdam University Medical Centres, Amsterdam, The Netherlands
| | - I R White
- Guy's Hospital, St John's Institute of Dermatology, London, UK
| | - M Wilkinson
- Department of Dermatology, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - J D Johansen
- Department of Dermato-Allergology, National Allergy Research Centre, Gentofte Hospital, University of Copenhagen, Hellerup, Denmark
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Pónyai G, Németh I, Nagy G, Fábos B, Irinyi B, Dinnyés M, Altmayer A, Temesvári E. Methylchloroisothiazolinone/methylisothiazolinone and methylisothiazolinone hypersensitivity in 1122 patients: A national multicenter study organized by the Hungarian Contact Dermatitis Group. Contact Dermatitis 2019; 81:467-469. [PMID: 31373004 DOI: 10.1111/cod.13370] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 07/24/2019] [Accepted: 07/30/2019] [Indexed: 02/03/2023]
Affiliation(s)
- Györgyi Pónyai
- Department of Dermatology, Venerology and Dermato-Oncology, Semmelweis University, Budapest, Hungary
| | - Ilona Németh
- Department of Dermatology, Venerology and Dermato-Oncology, Semmelweis University, Budapest, Hungary
| | - Gabriella Nagy
- Department of Dermatology, Central Hospital of Borsod-Abaúj-Zemplén County, Miskolc, Hungary
| | - Beáta Fábos
- Department of Dermatology, Kaposi Mór Teaching Hospital, Kaposvár, Hungary
| | - Beatrix Irinyi
- Dermatology Clinic, University of Debrecen - Medical Center, Debrecen, Hungary
| | - Mária Dinnyés
- Dermatology Outpatient Unit of Szt. László and Szt, István Hospital, Budapest, Hungary
| | - Anita Altmayer
- Department of Dermatology and Allergology of the Szent-Györgyi Albert Health Center, University of Szeged, Szeged, Hungary
| | - Erzsébet Temesvári
- Department of Dermatology, Venerology and Dermato-Oncology, Semmelweis University, Budapest, Hungary
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Bouschon P, Waton J, Pereira B, Schmutz JL, Le Bouëdec MCF, D'Incan M. Methylisothiazolinone allergic contact dermatitis: Assessment of relapses in 139 patients after avoidance advice. Contact Dermatitis 2019; 80:304-310. [DOI: 10.1111/cod.13221] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2018] [Revised: 01/10/2019] [Accepted: 01/13/2019] [Indexed: 01/09/2023]
Affiliation(s)
- Pauline Bouschon
- Department of Dermatology, CHU; Université Clermont-Auvergne; Clermont-Ferrand France
| | - Julie Waton
- Department of Dermatology, CHU; Université de Lorraine; Nancy France
| | - Bruno Pereira
- Department of Biostatistics, CHU; Clermont-Ferrand France
| | - Jean-Luc Schmutz
- Department of Dermatology, CHU; Université de Lorraine; Nancy France
| | | | - Michel D'Incan
- Department of Dermatology, CHU; Université Clermont-Auvergne; Clermont-Ferrand France
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Dusefante A, Mauro M, Belloni Fortina A, Corradin M, Larese Filon F. Contact allergy to methylchloroisothiazolinone/methylisothiazolinone in north‐eastern Italy: a temporal trend from 1996 to 2016. J Eur Acad Dermatol Venereol 2019; 33:912-917. [DOI: 10.1111/jdv.15453] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 12/19/2018] [Indexed: 11/28/2022]
Affiliation(s)
- A. Dusefante
- Clinical Unit of Occupational Medicine University of Trieste Trieste Italy
| | - M. Mauro
- Clinical Unit of Occupational Medicine University of Trieste Trieste Italy
| | | | | | - F. Larese Filon
- Clinical Unit of Occupational Medicine University of Trieste Trieste Italy
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