Contact allergy to hair cosmetic allergens in Thailand

Boonchai, Waranya; Winayanuwattikun, Waranaree; Limphoka, Pichaya; Sukakul, Thanisorn

doi:10.1111/cod.13373

Cited by 11 publications

(24 citation statements)

References 29 publications

(65 reference statements)

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“…In agreement with our results, hairdressers with ACD have been previously reported to be mainly female, affected at a relatively young age at the beginning of their careers 13‐16 . On the other hand, hair dye consumers are sensitized at a relatively older age, because most customers use hair dyes to conceal their grey hair and hair greying usually starts in the third or fourth decade of life 9,10 …”

Section: Discussionsupporting

confidence: 90%

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Occupational and non‐occupational allergic contact dermatitis to hair dyes in Greece. A 10‐year retrospective study

et al. 2020

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Background Oxidative hair dyes are an important source of chemical exposure and a major risk factor for the development of occupational and non‐occupational allergic contact dermatitis (ACD) worldwide. Objective To identify the frequency of common allergens associated with occupational and non‐occupational ACD to hair dyes during the last 10 years, in Greece. Methods We retrospectively reviewed the medical records of patients with suspected ACD to hair dyes from 2010–2019. All patients with patch‐test‐confirmed ACD to hair dyes were evaluated. Results Out of 501 patients with suspected ACD to hair dyes, 362 had at least one positive reaction to hair dye allergens (62.4% were customers and 37.6% were hairdressers). The mean age of customers and hairdressers was 43.8 years and 30.8 years, respectively. Of the customers, 58.9% were exposed to dyes for >10 years and 61% of hairdressers for <5 years. The most common site of ACD among customers was the scalp (85%) and among hairdressers the hands (90%). p‐Phenylenediamine (PPD) was the most common contact allergen (52.2%), followed by toluene‐2,5‐diamine, p‐aminophenol, m‐aminophenol, and ammonium persulfate. Conclusions Sensitization prevalences for PPD and cross‐reacting allergens have increased in Greece during the last decade, regardless of occupational or non‐occupational exposure to hair dyes.

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Section: Discussionsupporting

confidence: 90%

“…Hair dyes include a variety of chemical agents with sensitizing potential for both customers and hairdressers. PPD is the major component of oxidative hair dyes and the contact allergen of prime concern 1,8‐10 . Patch testing is the standard method for investigating sensitization and contact allergy to hair dyes.…”

Section: Introductionmentioning

confidence: 99%

Occupational and non‐occupational allergic contact dermatitis to hair dyes in Greece. A 10‐year retrospective study

et al. 2020

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“…As to the p-phenylenediamine sensitization prevalence, children may be exposed to the chemical via henna tattoos and black rubber toys; adults are more likely to encounter it through hair dyes, resulting in their higher sensitization prevalence. 28 In the case of ACD to cosmetic-related allergens, it needs to be noted that children could be potentially sensitized not only from their own personal products but also from the products used by their parents. 29,30 Careful history-taking and inspecting the list of ingredients on patients' products is required.…”

Section: Discussionmentioning

confidence: 99%

“…Additional analysis of the product information in our Contact Allergens Avoidance Program database revealed that only 5 of 218 (2.3%) baby products contained lanolin, which was much less than that reported in other countries. As to the p ‐phenylenediamine sensitization prevalence, children may be exposed to the chemical via henna tattoos and black rubber toys; adults are more likely to encounter it through hair dyes, resulting in their higher sensitization prevalence 28 . In the case of ACD to cosmetic‐related allergens, it needs to be noted that children could be potentially sensitized not only from their own personal products but also from the products used by their parents 29,30 .…”

Section: Discussionmentioning

confidence: 99%

Pediatric contact allergy: A comparative study with adults

et al. 2020

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Background: Pediatric allergic contact dermatitis is increasing. The patch test allergens included in pediatric baseline series vary globally. The worldwide prevalence of pediatric reactions to allergens needs clarification. Objectives: Identify the prevalence, associated factors, and culprit allergens for contact allergy among patch-tested Thai children, and compare with those for adults. Methods: Baseline series patch test results from 2010-2019 were collected for patients younger than 18 years of age. As a control group, sex-matched adult patients were randomly selected. The results and characteristics of the two groups were compared. Results: The median age of 112 patch tested pediatric patients was 16 (range 2-17) years. Of the children, 35.5% had at least one positive reaction, significantly less than the 56.6% for adults. The five most common pediatric allergens were nickel sulfate (12.1%), potassium dichromate (8.0%), methylisothiazolinone (7.1%), fragrance mix II (6.0%), and carba mix (5.4%). Although similar, the 10 most common allergens of the groups differed in order. Positive reactions to cosmetic allergens were significantly less frequent among the children. Many allergens remained entirely negative. Conclusions: The prevalence of positive reactions was lower in children, varying by population and region. The top-10 pediatric and adult causative allergens were almost identical. We recommend using the same baseline patch test series for children and adults in our region.

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“…A Thai study assessed 2842 patients patch tested to allergens commonly found in HCPs and found that 23.3% (n = 663) had positive reactions; however, clinical relevance and source exposure were not documented. 4 Here, we characterize positive patch test allergens and document ICD associated with HCPs.…”

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confidence: 99%

Contact Dermatitis Associated With Hair Care Products: A Retrospective Analysis of the North American Contact Dermatitis Group Data, 2001–2016

et al. 2021

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Background: Hair care products (HCPs) may cause both allergic contact dermatitis (ACD) and irritant contact dermatitis (ICD). Objectives: The aims of the study were to determine the prevalence of HCP-associated ICD/ACD and to characterize relevant allergens.Methods: This study is a retrospective analysis of North American Contact Dermatitis Group (NACDG) patch test data, 2001-2016.Results: Of 38,775 patients tested, 3481 (9.0%) had positive patch test reactions associated with HCPs. The HCP-positive patients were significantly more likely to be female (79.9% vs 66.0%) and/or have primary sites of dermatitis on the face (32.0% vs 27.8%) or scalp (15.4% vs 2.2%) compared with the HCP-negative patients (P < 0.0001). Of 4908 HCP-associated positive patch test reactions, 86.9% (n = 4263) were due to allergens on the NACDG screening series; p-phenylenediamine (35.8%), methylisothiazolinone (9.7%), methylchloroisothiazolinone/methylisothiazolinone (8.7%), and cocamidopropyl betaine (5.9%) were the most frequent. Most reactions (87.7%, 3736/4263) were currently clinically relevant. The most common job associated with 366 occupationally related NACDG HCP-associated allergens was hairdresser/cosmetologist (71.9%). Two hundred eighty-two patients (0.7%) had ICD associated with HCPs. Shampoo/conditioners were the most frequent source of NACDG HCP-associated reactions (47.3%) and HCP-associated ICD (45.0%).Conclusions: Of the HCP-positive patients, 18.5% had HCP reactions to allergens not on the NACDG screening series, underscoring the importance of patch testing to expanded series in patients suspected of HCP allergy.

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Contact allergy to hair cosmetic allergens in Thailand

Cited by 11 publications

References 29 publications

Occupational and non‐occupational allergic contact dermatitis to hair dyes in Greece. A 10‐year retrospective study

Occupational and non‐occupational allergic contact dermatitis to hair dyes in Greece. A 10‐year retrospective study

Pediatric contact allergy: A comparative study with adults

Contact Dermatitis Associated With Hair Care Products: A Retrospective Analysis of the North American Contact Dermatitis Group Data, 2001–2016

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