Methyldibromo Glutaronitrile Research Articles

High prevalence but no current clinical relevance of methyldibromo glutaronitrile since its ban in Turkey in 2015.

Regulatory actions significantly reduced methyldibromo glutaronitrile (MDBGN)-induced allergic contact dermatitis (ACD) from cosmetics in Europe. Turkey banned MDBGN in 2015. To assess sensitization and ACD rates to MDBGN before and after its ban in Turkey. Data from 2653 consecutively patch tested patients between 1996 and 2023 with MDBGN 0.1% pet. (n = 573) or 0.2%-0.3% pet. (n = 1310) or 0.5% pet. (n = 770) were analysed. MDBGN was tested as MDBGN/phenoxyethanol (PE) in 1434 patients. The sensitization prevalence was 1.7% (45/2653), peaking at 5.3% in 2018 and 2023 with MDBGN 0.3% pet. There was a two-fold male predominance, with patients exclusively ≥20 years old. None of the patients reacted to PE. ACD occurred in 0.7% (19/2653), mainly affecting hands and linked to non-occupational exposure (78.9%), particularly from rinse-off/leave-on cosmetics. The pattern of 'middle-aged men with hand eczema and fragrance allergy' was particularly notable. Occupational ACD was rare (21.1%), occurring mainly in hairdressers from hair gel. Positive reactions with current clinical relevance dropped from 48.3% (1996-2014) to zero after 2015 (p < 0.001). The ban effectively reduced MDBGN-induced ACD in Turkey, yet the prevalence of positive patch test reactions remains high, likely due to past exposures or other undisclosed sources. We suggest continued testing of MDBGN in the EBS in Turkey.

Increased rates of contact allergy to selected preservatives in patients with allergic contact dermatitis in Turkey.

Preservatives are a frequent cause of allergic contact dermatitis (ACD) and have caused numerous epidemics. The objective of this study is to determine the prevalence of preservative sensitivity, assess the change in the frequency of sensitivity, identify new preservatives with increased sensitivity rates, and evaluate the situation in Turkey by comparing our findings with current literature. A total of 201 patients diagnosed with ACD between 2018 and 2020, were patch tested with the European baseline series and additional seven preservative haptens. The change in the prevalence of sensitivity to each preservative hapten was investigated by comparing the data from the study conducted in our department between 2000 and 2004. Results showed that 17.4% (n = 35) of the patients were positive to preservatives. Comparison with previous data from 2000 to 2004 revealed an increase in the frequency of sensitization. The most prevalent allergen was methyldibromo glutaronitrile (9.5%), followed by methylchloroisothiazolinone/methylisothiazolinone (6.5%), and methylisothiazolinone (5%). The increase in preservative sensitivity in Turkey is the most remarkable finding. Although MDBGN was prohibited in cosmetic products, MCI/MI and MI are still widely used. Our findings suggest that awareness of preservative sensitivity should be increased and additional precautions should be taken, also in Turkey, regarding the use of preservatives.

Pilot Study of the Prevalence of Contact Sensitization to Preservatives as Cosmetic Ingredients in Occupational and Educational Exposures

Abstract Aim: To evaluate the prevalence of contact sensitization to selected preservatives as cosmetic ingredients among cosmeticians and cosmetology students and to identify the most common allergens in occupational and non-occupational exposures. Materials and methods: Skin patch testing with formaldehyde, quaternium-15, DMDM hydantoin, imidazolidinyl urea, methylisothiazolinone + methylchloro-isothiazolinone, iodopropynyl butylcarbamate, methyldibromoglutaronitrile, polyaminopropyl biguanide and paraben mix was performed among 109 participants – 37 cosmetology students, 26 cosmeticians, and 46 individuals – controls, occupationally unexposed to cosmetics. Fisher Exact Test and multiple binary logistic regression analysis were used. Results: Formaldehyde was the main contact sensitizer, with significantly higher prevalence of sensitization among the occupationally exposed cosmeticians and cosmetology students if compared to the controls (p = 0.005) [OR = 0.290 (95% CI: 0.092-0.916]). The positivity prevalence to DMDM hydantoin was 11%, with equal rates of sensitization to quaternium-15, methylisothiazolinone + methylchloroisothiazolinone and methyldibromo-glutaronitrile (9.2%). A significantly higher prevalence of co-sensitization to DMDM hydantoin and imidazolidinyl urea was revealed. The positivity rate to quaternium-15 was highest among cosmetology students – 13.5%. The frequency of positive reactions to imidazolidinyl urea was 2.7% for students and 11.5% for cosmeticians. Cosmetology students and cosmeticians were at risk of sensitization to DMDM hydantoin, and the cosmeticians – to methylisothiazolinone/methylchloro-isothiazolinone and methyldibromo glutaronitrile and parabens. Conclusions: This study established comparative high prevalence and risk of contact sensitization to the selected preservatives. Proper occupational risk information, developing and disseminating of practical tools for workplace risk assessment and management, with complex programs for prevention of occupational skin diseases should be provided.

Trends in Patch Testing With the Mayo Clinic Standard Series, 2017-2021.

Background: Patch testing to a standard series is used to identify culprit allergens in patients with contact dermatitis. The reaction rates evolve over time based on trends in cutaneous exposures by the general population. Objective: The aim of this study was to analyze the patch test results of the Mayo Clinic standard series in patients tested from 2017 to 2021. Methods: The patch test reactions of standard series allergens tested from 2017 to 2021 were retrospectively reviewed and compared with the results of our prior report from 2011 to 2015 as well as the North American Contact Dermatitis Group (NACDG) report from 2017 to 2018. Results: Of 2667 patients tested, 1683 (63.1%) had at least 1 positive reaction. The 15 allergens with the highest reaction rates were hydroperoxides of linalool 1%, nickel (II) sulfate hexahydrate, methylisothiazolinone, Myroxylon pereirae resin, hydroperoxides of linalool 0.5%, methyldibromo glutaronitrile, neomycin sulfate, cobalt (II) chloride hexahydrate, fragrance mix I, benzalkonium chloride, bacitracin, hydroperoxides of limonene, methylchloroisothiazolinone/methylisothiazolinone, p-phenylenediamine, and textile dye mix. Twelve (80%) of these allergens were also in the top 15 of the most recent NACDG report. Conclusions: Hydroperoxides of linalool and hydroperoxides of limonene are new allergens that have been added to our standard series. These are associated with high reaction rates.

Occupational contact allergy: The European perspective-Analysis of patch test data from ESSCA between 2011 and 2020.

Occupational skin diseases have led the occupational disease statistics in Europe for many years. Especially occupational allergic contact dermatitis is associated with a poor prognosis and low healing rates leading to an enormous burden for the affected individual and for society. To present the sensitization frequencies to the most relevant allergens of the European baseline series in patients with occupational contact dermatitis (OCD) and to compare sensitization profiles of different occupations. The data of 16 022 patients considered having OCD after patch testing within the European Surveillance System on Contact Allergies (ESSCA) network between January 2011 and December 2020 were evaluated. Patients (n= 46 652) in whom an occupational causation was refuted served as comparison group. The highest percentages of OCD were found among patients working in agriculture, fishery and related workers, metal industry, chemical industry, followed by building and construction industry, health care, food and service industry. Sensitizations to rubber chemicals (thiurams, carbamates, benzothiazoles) and epoxy resins were associated with at least a doubled risk of OCD. After a decline from 2014 onwards, the risks to acquire an occupation-related sensitization to methyl(chloro)isothiazolinone (MCI/MI) and especially to methylisothiazolinone (MI) seem to increase again. Sensitization rates to formaldehyde were stable, and to methyldibromo glutaronitrile (MDBGN) slightly decreasing over time. Among allergens in the European Baseline Series, occupational relevance is most frequently attributed to rubber accelerators, epoxy resins and preservatives.

Trends in Patch Testing of Black Patients: The Mayo Clinic Decade Experience (January 1, 2011, to December 31, 2020)

Background: Trends in patch testing for allergic contact dermatitis (ACD) have not been well characterized in Black patients. Despite similar incidence of ACD in Black and White patients, there are differences in allergen profiles. Understanding patch testing trends in Black patients furthers knowledge that has considerable impact on the management of ACD in the Black population. Objective: The purpose of this study was to review the results of patch testing in Black patients at Mayo Clinic over a decade. Methods: We retrospectively reviewed the results of patch testing to the standard, extended standard, or hairdresser series in 149 Black patients seen at Mayo Clinic (Rochester, MN; Scottsdale, AZ; and Jacksonville, FL) from January 1, 2011, to December 31, 2020. Results: During the 10-year period, 149 Black patients (mean age, 49.2 years [SD, 17.1 years]; female 67.1%) were patch tested at Mayo Clinic to the standard, extended standard, or hairdresser series. Most common sites of dermatitis were generalized (30.9%), hands (18.8%), leg (16.8%), trunk (16.1%), and arm (14.8%). Overall, 109 patients (73.2%) had at least 1 positive reaction and 74 patients (50%) had 2 or more positive reactions. Overall, the 10 allergens with the highest reaction rates (from highest to lowest) identified in our study population were 4-amino-2-hyroxytoluene (33.3%), thimerosal (20.4%), nickel sulfate (18.9%), methylisothiazolinone (16.5%), methyldibromo glutaronitrile (13.4%), methyldibromo glutaronitrile/phenoxyethanol (12.5%), captan (12.5%), carmine (12.5%), methylchloroisothiazolinone/methylisothiazolinone (11.5%), and hydroperoxide of linalool 1% (11.3%). Conclusions: We describe patch test results in Black patients over a decade at Mayo Clinic. The top 10 allergens were preservatives, hair dyes, and fragrances. Differing patterns of allergens may occur in Black patients due to different patterns of exposures related to cultural practices.

Patch test results in a Dutch paediatric population with suspected contact allergy: A retrospective cohort study.

Allergic contact dermatitis (ACD) in paediatric patients is on the rise. Continuous identification of emerging allergens is of great importance to ensure accurate patch testing. To assess the frequency and relevance of contact sensitivity in children and adolescents and evaluate changes in sensitization rates in the last decade. All patients with suspected ACD who underwent patch testing at the Amsterdam University Medical Centers between 2015 and 2021 were included. Of 439 patients tested with the European Baseline Series (EBS) and additional series, 334 (76%) patients had at least 1 positive reaction and 172 patients (39%) had 1 or more relevant positive reactions. If additional series would have been omitted, 20% of patients would have been underdiagnosed. Compared to patients tested between 1996 and 2013, reactions to metal allergens, isothiazolinones, methyldibromo glutaronitrile, carba mix, amerchol L-101, and benzophenone-4 were more frequently observed. This study confirms the need for patch testing in paediatric patients suspected of having ACD. For accurate patch testing, it is advised to include additional series.

33863 Successful use of dupilumab for treatment of atopic dermatitis in a liver transplant patient

There is a paucity of data regarding the use of dupilumab treatment of atopic dermatitis (AD) in solid organ transplant patients. We report a case of successful treatment of AD in an orthotopic liver transplant (LT) patient with dupilumab with favorable clinical response and no observed side effects throughout two years of treatment. A 65-year-old Caucasian female with history of orthotopic LT for cirrhosis 17 year prior, presented to dermatology clinic with 2-year history of a pruritic eruption involving bilateral extremities. Punch biopsy revealed spongiotic dermatitis with eosinophils, consistent with atopic dermatitis, allergic contact dermatitis, or id reaction. Photo-patch testing revealed positivity for methyldibromo glutaronitrile, benzalkonium chloride, and benzophenone. Despite numerous trials of medium- and high-potency topical steroids as well as intramuscular and oral corticosteroids, the patient experienced continued pruritus and repeated flares. Phototherapy and immunosuppressives including methotrexate and cyclosporine were contraindicated due to the patient’s photo-allergy and LT status on a stable dose of tacrolimus, respectively. After extensive discussion with the patient’s primary care and transplant teams, the decision was made to begin dupilumab. After 1 month of treatment, the patient experienced near clearance of rash, minimal flares that were easily controlled with adjunct topical corticosteroids, and a 90% improvement in subjective pruritus, with no adverse effects. This response was sustained throughout an additional 2 years of treatment. We report this case of successful dupilumab treatment of AD in a LT patient to raise awareness to the safety and efficacy of its use in this patient population.

COVID-19, The Frequent Use of Moist Wipes, and Multiple Allergic Sensitisations: A Case Report

During the COVID-19 pandemic, frequent handwashing and disinfection have exacerbated or caused skin diseases. This case report shows the simultaneous development of allergic contact dermatitis to Kathon CG (DuPoint, Wilmington, Delaware, USA), Euxyl K400, and fragrance mix I because of the frequent use of moist (baby) wipes during the pandemic outbreak. The sensitisation to multiple allergens was determined by patch testing, whereas the disease resolved after usage discontinuation of moist wipes. Notably, two COVID-19 pulmonary events anticipated the clinical sensitisation. This case demonstrates that changes in attitude and behaviour with concern to exposure intensity to moist wipes can induce a clinical response to many allergens.

Contact allergy to haptens in the Swedish baseline series: Results from the Swedish Patch Test Register (2010 to 2017).

Allergic contact dermatitis has considerable public health impact and causative haptens vary over time. To report the prevalence of contact allergy to allergens in the Swedish baseline series 2010 to 2017, as registered in the Swedish Patch Test Register. Results and demographic information for patients tested with the Swedish baseline series in 2010 to 2017 were analysed. Data for 21 663 individuals (females 69%) were included. Females had significantly more positive patch tests (54% vs 40%). The reaction prevalence rates were highest for nickel sulfate (20.7%), fragrance mix I (7.1%), Myroxylon pereirae (6.9%), potassium dichromate (6.9%), cobalt chloride (6.8%), methylchloroisothiazolinone/methylisothiazolinone (MCI/MI; 6.4%), MI (3.7%), colophonium (3.5%), fragrance mix II (3.2%), and formaldehyde (3.2%). Myroxylon pereirae reaction prevalence increased from 5% in 2010 to 9% in 2017 and that for methyldibromo glutaronitrile from 3.1% to 4.6%. MCI/MI and MI reactions decreased in prevalence after 2014. Nickel reaction prevalence decreased among females aged 10 to 19 years. Nickel remains the most common sensitizing agent, with reaction prevalence decreasing among females younger than 20 years. The changes in MCI/MI and MI reaction prevalence mirrored those in Europe. The register can reveal changes in contact allergy prevalence over time among patients patch tested in Sweden.

Evaluating the inclusiveness of common allergens in expanded series patch tests for children in the pediatric allergic contact dermatitis registry

Evaluating the inclusiveness of common allergens in expanded series patch tests for children in the pediatric allergic contact dermatitis registry

Should methyldibromo glutaronitrile continue to be used in the European baseline Series? A REIDAC national cross-sectional study.

Methyldibromo glutaronitrile (MDBGN) was one of the most frequent and relevant allergens found in patch testing at the beginning of this century. In 2008, this preservative was banned from cosmetics in Europe and ever since the prevalence of contact allergy to MDBGN has progressively decreased. Despite that gradual decline, MDBGN is still patch-tested in most baseline series. This study assessed the frequency of MDBGN sensitization, epidemiological characteristics of allergic patients, and the relevance of positive patch tests in a nationwide Spanish registry (REIDAC). We evaluated consecutively patch-tested patients in all participating centres. Using these data, we calculated the proportion of patients with positive patch tests to MDBGN from June 2018 to June 2020 and evaluated the relevance of the positive patch tests. One hundred and fourteen out of 5072 (2.24 %) tested patients were sensitized to MDBGN. Clinical current relevance was confirmed in only one case. Although the frequency of contact allergy to MDBGN remains high, no clinical significance was found in most of these patients (5072 tests needed to obtain one relevant positive result). The clinical usefulness of this allergen seems weak and its continued inclusion in the European baseline series is questionable.

Should methyldibromo glutaronitrile in the baseline series be tested? Results of the skin allergy unit of a fourth‐level hospital in Spain

Should methyldibromo glutaronitrile in the baseline series be tested? Results of the skin allergy unit of a fourth‐level hospital in <scp>Spain</scp>

Patch testing in Lao medical students.

BackgroundDermatological services in Laos, South East Asia are limited to the capital and patch testing is currently not available, so no data exists regarding the common cutaneous allergens in this population.ObjectivesThe aim of this study was to document positive patch tests in medical students without evidence of contact dermatitis in Laos.Patients/Materials/MethodsOne hundred and fifty medical students were patch tested using TRUE Test® panels 1 to 3 (35 allergens). Readings were taken at Days 2 and 4.ResultsThirty-eight students (25.3%) had a positive reaction to at least one allergen, accounting for 52 reactions in total. The proportion of the students with positive patch test reading was significantly higher in the female [33/96 (34%)] than in the male [5/54 (9%)], p<0.001. The most common allergens were: nickel (10%), gold (6.6%), thiomersal (6.6%), cobalt dichloride (2%) and p-tert-Butylphenol formaldehyde resin (2%). Balsam of Peru (0.66%), black rubber mix (0.66%), Cl+Me-Isothiazolinone (0.66%), fragrance mix 1 (0.66%), quinolone mix (0.66%), methyldibromo glutaronitrile (0.66%), mercapto mix (0.66%), epoxy resin (0.66%), paraben mix (0.66%), thiuram (0.66%) and wool alcohols (0.66%) accounted for all of the other positive reactions.ConclusionThis study represents the first documented patch test results in Lao medical students and in the adult Lao population. The results of this study will inform any future research into contact allergy in Laos and give an insight into the background level of contact sensitivity in this population.

Dauerbrenner Konservierungsmittelallergie

Preservatives in cosmetics are often suspected as contact sensitizers and hence frequently patch tested in dermatitis patients. Exposure in this field has changed over the course of years. To describe the frequency of contact sensitization to various preservatives. Retrospective data analysis from the Information Network of Departments of Dermatology (IVDK) for the years 2009-2018. Frequency of sensitization to methylisothiazolinone (MI) has increased from 2.0% in 2009 to 7.2% in 2013. Since 2014, the rate has been falling again. Increasing the patch test concentration of methyldibromo glutaronitrile (MDBGN) in 2016 has caused asudden rise in positive patch test reactions from 2.0% to more than 4.5%. Allergic reactions to other preservatives occurred in less than 1% of the patients tested. Since 2014, the worldwide "epidemic" of sensitization to MI has been subsiding in Central Europe, thanks to corresponding restrictions on use. Since 2008, there is no longer any widespread exposure to MDBGN; the new, higher test concentration elicits many false-positive test reactions and explains the sudden rise in positive patch test reactions since 2016. Despite widespread use, phenoxyethanol, benzoates, benzyl alcohol, parabens and sorbates rarely cause allergic reactions. Therefore, they can be recommended for cosmetics from the epidemiological-allergological point of view.

Changing trends of contact allergens in Thailand: A 12‐year retrospective study

Contact allergen prevalences often change. Continual surveillance is necessary to detect trends in sensitization rates and emerging allergens. To identify the prevalence of, and trends in, the positive reactions to each allergen in the baseline series during a 12-year period in Thailand. The medical records of 2803 patients who underwent patch testing at the Contact Dermatitis Clinic, Siriraj Hospital, between 2006 and 2018, were retrospectively reviewed. The baseline series used by the clinic was adapted from the European and the International baseline series. The patch testing results were subdivided into 2-year blocks in order to compare the prevalences of each allergen. The prevalences of positive reactions to nickel, fragrance mixes I and II, dichromate, cobalt, carba mix, methyldibromo glutaronitrile, paraben mix, neomycin sulfate, methylisothiazolinone (MI), epoxy resin, N-isopropyl-N-phenyl-4-phenylenediamine and the corticosteroids significantly decreased. Methylchloroisothiazolinone (MCI)/MI was the only allergen associated with a significant increase of positive reactions, from 2.4% to 10.7%. However, the proportion of positive reactions to MCI/MI decreased in the final 2-year period. Approximately half of the substances in the screening patch test series showed a decline in the number of positive reactions, whereas MCI/MI showed an increasing prevalence.

Contact sensitization to cosmetic series of allergens in patients with rosacea: A prospective controlled study.

Previous studies have documented the cosmetic allergic contact dermatitis due to common cosmetic allergens in standard series and various cosmetic products used in rosacea patients; however, the prevalence of contact sensitization to other cosmetic allergens other than those in standard series is largely unknown. To assess the prevalence of contact sensitization to a European cosmetic series of allergens (Chemotechnique Diagnostics AB, Malmö, Sweden) in rosacea patients and to compare this with the prevalence observed in general population. In this prospective monocenter study, 103 patients with rosacea and 104 control subjects were investigated for contact sensitizations via patch testing the cosmetic series including 49 allergens. At least one positive allergic reaction was observed in 62 (60.2%) rosacea patients, and in 25 (24.0%) control subjects. Compared with control subjects, rosacea patients were statistically more likely to have positive patch tests. The most common allergens giving positive results were octyl gallate (10.68%), dodecyl gallate (8.74%), tert-Butylhydroquinone (7.77%), thimerosal (6.80%), euxyl K400 (6.80%), cocamidopropyl betaine (5.83%), and 2,6-Di-tert-butyl-4-cresol (4.85%). This study shows that rosacea patients show a strikingly high prevalence of contact sensitization to cosmetic allergens. We recommend the additional use of cosmetic series for patch testing, and the careful use of cosmetics in rosacea patients if cosmetic contact sensitivity is suspected.

Trends in Patch Testing With the Mayo Clinic Standard Series, 2011-2015.

Patch testing to a standard (baseline) series of allergens is the screening tool used to identify culprit allergens in patients with contact dermatitis. The allergens and concentrations used in a standard series are constantly evolving to be most relevant to the patients being patch tested. The aim of this study was to analyze the 2011-2015 patch test results of the Mayo Clinic standard series. We retrospectively reviewed patch test reactions of standard series allergens from 2011 through 2015 and compared these results with the 2011-2012 and 2013-2014 North American Contact Dermatitis Group (NACDG) reports. Of 2582 patients included, 1566 (60.7%) had at least 1 positive reaction, and 516 (20.0%) had at least 1 irritant reaction. The 15 allergens with the highest reaction rates (from highest to lowest) were nickel sulfate hexahydrate, methylisothiazolinone, Myroxylon pereirae resin, neomycin sulfate, cobalt (II) chloride hexahydrate, benzalkonium chloride, fragrance mix I, potassium dichromate, bacitracin, methylchloroisothiazolinone/methylisothiazolinone, carba mix, formaldehyde, p-phenylenediamine, quaternium-15, and methyldibromo glutaronitrile. Twelve (80%) of these allergens were also in the top 15 of the most recent NACDG report; the 3 allergens not in the NACDG top 15 allergens were potassium dichromate, benzalkonium chloride, and methyldibromo glutaronitrile (the latter 2 allergens are not included in their series).

Contact Dermatitis to Medications and Skin Products.

Consumer products and topical medications today contain many allergens that can cause a reaction on the skin known as allergic contact dermatitis. This review looks at various allergens in these products and reports current allergic contact dermatitis incidence and trends in North America, Europe, and Asia. First, medication contact allergy to corticosteroids will be discussed along with its five structural classes (A, B, C, D1, D2) and their steroid test compounds (tixocortol-21-pivalate, triamcinolone acetonide, budesonide, clobetasol-17-propionate, hydrocortisone-17-butyrate). Cross-reactivities between the steroid classes will also be examined. Next, estrogen and testosterone transdermal therapeutic systems, local anesthetic (benzocaine, lidocaine, pramoxine, dyclonine) antihistamines (piperazine, ethanolamine, propylamine, phenothiazine, piperidine, and pyrrolidine), topical antibiotics (neomycin, spectinomycin, bacitracin, mupirocin), and sunscreen are evaluated for their potential to cause contact dermatitis and cross-reactivities. Finally, we examine the ingredients in the excipients of these products, such as the formaldehyde releasers (quaternium-15, 2-bromo-2-nitropropane-1,3 diol, diazolidinyl urea, imidazolidinyl urea, DMDM hydantoin), the non-formaldehyde releasers (isothiazolinones, parabens, methyldibromo glutaronitrile, iodopropynyl butylcarbamate, and thimerosal), fragrance mixes, and Myroxylon pereirae (Balsam of Peru) for contact allergy incidence and prevalence. Furthermore, strategies, recommendations, and two online tools (SkinSAFE and the Contact Allergen Management Program) on how to avoid these allergens in commercial skin care products will be discussed at the end.

Determination of Methyldibromoglutaronitrile (MDBGN) in Skin Care Products by Gaschromatography‐Mass Spectrometry Employing an Enhanced Matrix Removal (EMR) Lipid Clean‐Up

A new application of QuEChERS (Quick, Easy, Cheap, Efficient, Rugged, and Safe) extraction followed by enhanced matrix removal‐lipid cleanup and GC‐MS analysis is proposed for skin care products. The method is applied to determine methyldibromo glutaronitrile (MDBGN), a preservative frequently used in cosmetic products before being banned for its allergic reactions, so as to unmask its now‐prohibited use. The new validated procedure consists in extracting the cosmetic products with acetonitrile, removing the lipid matrix and then water and solid particles from the organic mixture by two dispersive solid‐phase extractions (dSPE) in sequence and, lastly, analyzing the extracts in GC–MS. Compared to classic liquid–liquid extraction with chloroform, the method has superior features in terms of applicability to cosmetics, ease of use, working times optimization and, above all, reduction of analytically interfering lipidic constituents.Practical Applications: The use of EMR‐Lipid dSPE system followed by GC‐MS analysis allows to trace and quantify a minimal amount of a banned preservative, MDBGN, in so‐called “complex” matrices, such as cosmetic creams, managing them in a simple and efficient way. Therefore, this system can be proposed for further applications of extractive procedures, advantageously alternative to the classic liquid‐liquid extractions, in the field of cosmetics analysis. The EMR‐Lipid dSPE system shows the following advantages: much simpler use, as the system provides tubes already packaged with the clean‐up phase, optimization of the working times, and noticeable reduction of extraction impurities allowing cleaner extracts to be obtained.A new application of QuEChERS (Quick, Easy, Cheap, Efficient, Rugged, and Safe) extraction followed by enhanced matrix removal‐lipid cleanup and GC–MS analysis is proposed for skin care products. Compared to classic liquid–liquid extraction with chloroform (upper part), the method has superior features in terms of applicability to cosmetics, ease of use, working times optimization and, above all, reduction of analytically interfering lipidic constituents (lower part).