Contact allergy to common ingredients in hair dyes

Background p-Phenylenediamine (PPD) is the primary patch test screening agent for hair dye contact allergy, and approximately 100 different hair dye chemicals are allowed. Objectives To examine whether PPD is an optimal screening agent for diagnosing hair dye allergy or whether other clinically important sensitizers exist. Methods Two thousand nine hundred and thirty-nine consecutive patients in 12 dermatology clinics were patch tested with five hair dyes available from patch test suppliers. Furthermore, 22 frequently used hair dye ingredients not available from patch test suppliers were tested in subgroups of approximate to 500 patients each. Results A positive reaction to PPD was found in 4.5% of patients, and 2.8% reacted to toluene-2,5-diamine (PTD), 1.8% to p-aminophenol, 1% to m-aminophenol, and 0.1% to resorcinol; all together, 5.3% (n=156). Dying hair was the most frequently reported cause of the allergy (55.4%); so-called temporary henna' tattoos were the cause in 8.5% of the cases. p-Methylaminophenol gave a reaction in 20 patients (2.2%), 3 of them with clinical relevance, and no co-reaction with the above five well-known hair dyes. Conclusions Hair dyes are the prime cause of PPD allergy. PPD identifies the majority of positive reactions to PTD, p-aminophenol and m-aminophenol, but not all, which justifies additional testing with hair dye ingredients from the used product.

MEDICIN OCH HÄLSOVETENSKAP Klinisk medicin Dermatologi och venereologi hsv//swe
MEDICAL AND HEALTH SCIENCES Clinical Medicine Dermatology and Venereal Diseases hsv//eng
2-amino-3-hydroxypyridine
3-nitro-p-hydroxyethylaminophenol
hair dye
allergy
m-aminophenol
p-aminophenol
p-methylaminophenol
PPD
p-phenylenediamine
p-toluenediamine
toluene-2
5-diamine

Rustemeyer, Thomas (author)
Goncalo, Margarida (author)
Bruze, MagnusLund University,Lunds universitet,Yrkes- och miljödermatologi,Forskargrupper vid Lunds universitet,Occupational and Environmental Dermatology,Lund University Research Groups(Swepub:lu)derm-mbr (author)
Goossens, An (author)
Gimenez-Arnau, Ana M. (author)
Le Coz, Christophe J. (author)
White, Ian R. (author)
Diepgen, Thomas L. (author)
Andersen, Klaus E. (author)
Agner, Tove (author)
Maibach, Howard (author)
Menne, Torkil (author)
Johansen, Jeanne D. (author)
Yrkes- och miljödermatologiForskargrupper vid Lunds universitet (creator_code:org_t)

By the author/editor: Sosted, Heidi; Rustemeyer, Thom ...; Goncalo, Margari ...; Bruze, Magnus; Goossens, An; Gimenez-Arnau, A ...; show more...; Le Coz, Christop ...; White, Ian R.; Diepgen, Thomas ...; Andersen, Klaus ...; Agner, Tove; Maibach, Howard; Menne, Torkil; Johansen, Jeanne ...; show less...

About the subject

MEDICAL AND HEALTH SCIENCES: MEDICAL AND HEAL ...; and Clinical Medicin ...; and Dermatology and ...

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