TOPLINE:
Allergens were present in more than half of evaluable over-the-counter (OTC) topical scar products, study finds.
METHODOLOGY:
OTC topical scar treatments have the potential to cause an allergic reaction, but the prevalence of North American Contact Dermatitis Group (NACDG) core allergens in these products is unclear.Researchers used the word scar in a query of Amazon.com and four other retail websites to identify topical scar products for consumers and noted the list of ingredients.The investigators also surveyed the American Contact Dermatitis Society’s Contact Allergen Management Program (CAMP), a resource that helps patients with allergies find personal care products that are safe to use, for pertinent products.
TAKEAWAY:
The search query identified 156 products. Of these, 119 (76.2%) were gels, creams, or oils and 37 (23.7%) were sheets, strips, or tape.Of the 125 products that had a list of ingredients, 69 (55.2%) contained at least one NACDG allergen and 45 (36%) contained more than one.The top five most common allergens listed in the ingredients were fragrance (16.8%), phenoxyethanol (16.8%), parabens (14.4%), panthenol (12.8%), sodium benzoate (9.60%), and ethylhexylglycerin (8%).Analysis of CAMP revealed that the program only had five unique scar products in its list, suggesting that CAMP might not be a reliable source of scar product information for patients with known allergies to pertinent NACDG allergens.
IN PRACTICE:
“Patients can consider trying a ‘use test’ on the inner forearm before applying to the surgical site,” the authors wrote. “It may reveal they are sensitive or sensitized by a product.
SOURCE:
First author Meera Kattapuram, MD, of the Department of Internal Medicine at Mount Sinai Hospital, New York, led the study, published in the February issue of Dermatologic Surgery.
LIMITATIONS:
Limitations include the selection of five retailers and the top 100 products from each website and the potential for ingredient list inaccuracies.
DISCLOSURES:
The authors reported having no financial conflicts of interest. The research was supported by a grant from the National Institutes of Health/National Cancer Institute.
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