Allergen Content of Best-Selling Ethnic Versus Nonethnic Shampoos, Conditioners, and Styling Products

Tawfik, Melanie; Rodriguez-Homs, Larissa G; Alexander, Tiffany; Patterson, Stavonnie; Okoye, Ginette A.; Atwater, Amber Reck

doi:10.1097/der.0000000000000668

Cited by 12 publications

(23 citation statements)

References 25 publications

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“…African American patients have further been shown to have a lower rate of sensitization to MI/MCI from hairstyling products. 4,10,11 Our data were not consistent with these previous studies as 11% of African American patients reacted positively for MI/MCI, compared with 8% of White patients. However, similar to the previous studies cited, these MI/MCI differences were not statistically significant (Tables 2, 3).…”

Section: Discussioncontrasting

confidence: 99%

Patterns of Allergic Contact Dermatitis in African Americans in a Major Metropolitan Area Over a 10-Year Period

2021

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Background: Differences in patterns of allergic contact dermatitis (ACD) among underrepresented minority populations are not well studied.Objective: The aim of the study was to investigate patterns of ACD in African American and White patch-tested patients in a distinct metropolitan area over a 10-year period.Methods: We conducted a retrospective review of 297 ACD patients patch tested from 2009 to 2019. Differences in allergen frequency, relevance, and sources of exposure were evaluated. Fisher exact test analyses were performed to examine these differences.Results: Among 297 patients, 215 were White and 47 were African American. The most common sensitizers differed between the 2 groups. African American patients also reacted with statistically significant greater frequency to disperse dye blue ( P = 0.019) and textile dye mix ( P = 0.001). The most common source of positive patch tests for all patients was personal care products (72%). Occupational allergy was greater in African American male patients, and personal care product exposure was greater in White male patients ( P = 0.009).Conclusions: Our study highlights the differing patterns of sensitization seen in African American and White patients. This is likely due to differences in personal care product use or occupational allergy. Additional studies with larger sample sizes are needed to expand upon these differences.

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Section: Discussioncontrasting

confidence: 99%

Patterns of Allergic Contact Dermatitis in African Americans in a Major Metropolitan Area Over a 10-Year Period

2021

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“…Another study assessing allergens in ethnic versus nonethnic shampoos/conditioners also found fragrance to be the most frequent allergen present in shampoos (145 of 150 products) and conditioners (140 of 142 products), regardless of the product being categorized as either "ethnic" or not. 51 However, we found MI, MCI/MI, and CAPB to be much more frequent relevant allergens in shampoos, likely because of the higher sensitizing potential of these allergens, as well as the widespread use of fragrance in other personal care products. Similarly, MCI/MI and MI are uncommon ingredients found in hairstyling products 51 yet were the most frequent causes of allergy in hairstyling products in this study.…”

Section: Categories Of Hcpsmentioning

confidence: 67%

“…Interestingly, decyl glucoside was reported as the third most common allergen (44.2%, 16/36 products) found in ethnic shampoos, as it can be less drying to the hair than surfactants. 51 One case of ACD due to decyl glucoside in a hair mousse was reported; otherwise, shampoos are the most common source of ACD. 27 In our study, 86.7% of decyl glucoside HCP reactions were due to shampoo/conditioner sources.…”

Section: Important Nacdg Allergensmentioning

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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“…The first was that, although there existed no significant difference in fragrance content between the ethnic and nonethnic hair care products, the number of fragrance-free ethnic hair care products was few, identifying only 1 fragrance-free shampoo, 1 conditioner, and 8 styling products. 57 Second, although many common hair allergens already tested in standard screening series (eg, fragrances, MCI/MI, MI, formaldehyde releasers, and tocopherol) were shared between ethnic and nonethnic hair products, decyl glucoside, sodium benzoate, and phenoxyethanol were 3 compounds more commonly found in ethnic hair products. 57 The allergen content of hair products marketed for individuals with ethnic hair is of particular importance as the market for targeting these consumers continues to increase.…”

Section: Ethnic Hair Productsmentioning

confidence: 99%

“… 57 Second, although many common hair allergens already tested in standard screening series (eg, fragrances, MCI/MI, MI, formaldehyde releasers, and tocopherol) were shared between ethnic and nonethnic hair products, decyl glucoside, sodium benzoate, and phenoxyethanol were 3 compounds more commonly found in ethnic hair products. 57 The allergen content of hair products marketed for individuals with ethnic hair is of particular importance as the market for targeting these consumers continues to increase.…”

Section: Ethnic Hair Productsmentioning

confidence: 99%

Impact of trends in new and emerging contact allergens

Rodriguez

Brod

James

2022

International Journal of Women’s Dermatology

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Allergic contact dermatitis represents a T cell-mediated, delayed-type hypersensitivity response to exogenous agents. While allergic contact dermatitis is one of the most common causes of skin disease encountered by dermatologists, emerging trends within the field are in constant flux, as influenced by ever-changing industry practices and evolving consumer behaviors. Although certain allergens continue to predominate, new chemicals are frequently being introduced, thus shifting the pattern of allergen exposure and sensitization. This review examines the impact of trends in new and emerging contact allergens, with particular attention to clinical contexts in which these agents may be encountered. In addition, we offer a working knowledge of these allergens’ characteristics, sources, and relevance, while outlining recommendations to accurately evaluate, diagnose, and provide appropriate counseling for these diseases.

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Allergen Content of Best-Selling Ethnic Versus Nonethnic Shampoos, Conditioners, and Styling Products

Cited by 12 publications

References 25 publications

Patterns of Allergic Contact Dermatitis in African Americans in a Major Metropolitan Area Over a 10-Year Period

Patterns of Allergic Contact Dermatitis in African Americans in a Major Metropolitan Area Over a 10-Year Period

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

Impact of trends in new and emerging contact allergens

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