Contact dermatitis caused by Tinosorb^® M: the importance of pach testing with pure methylene bis‐benzotriazolyl tetramethylbutylphenol

European photopatch test baseline series: A 3‐year experience

“…Further studies showed that, in most published cases with positive patch test reactions to Tinosorb M, positive patch test reactions to decyl glucoside were found, but not to pure MBBT. This stresses the importance of individually including the surfactant and the pure sunscreen in the photopatch test, as in our study …”

“…This stresses the importance of individually including the surfactant and the pure sunscreen in the photopatch test, as in our study. [18][19][20] Fenofibrate reactions were of uncertain relevance in all positive patients, and co-sensitization with other allergens such as ketoprofen, octocrylene and benzophenone-3 was found, which is why we consider fenofibrate reactions to be cross-reactions.…”

Patch testing with alkyl glucosides: Concomitant reactions are common but not ubiquitous

“…1 A survey of the 20 best-selling sunscreens and facial moisturizers on Amazon, the largest online retailer in the world, showed that 15% contained alkyl glucosides in their list of ingredients. 3 There have been multiple reports of ACD caused by decyl glucoside in the sunscreen ingredient Tinosorb M. [11][12][13][14] Although decyl glucoside is present in the final preparation, its name does not appear on the ingredient labels of some sunscreens. Therefore, it is considered to be the "hidden allergen" within Tinosorb M. 15 In recent years, alkyl glucosides have been identified as culprit allergens in wound dressings, prompting authors to recommend their inclusion in leg ulcer series.…”

“…A survey of the 20 best‐selling sunscreens and facial moisturizers on Amazon, the largest online retailer in the world, showed that 15% contained alkyl glucosides in their list of ingredients . There have been multiple reports of ACD caused by decyl glucoside in the sunscreen ingredient Tinosorb M . Although decyl glucoside is present in the final preparation, its name does not appear on the ingredient labels of some sunscreens.…”

Active sunscreen ingredients in Australia

“…The most common contact allergens were octyl dimethyl para‐aminobenzoic acid, BP3 and sandalwood . Table lists the ingredients that cause contact and photocontact allergies …”