Parabens are among the least allergenic preservatives available, with allergic reactions remaining rare and stable over 70+ years of widespread use. The study found that paraben sensitivity is quite uncommon and generally relevant when it does occur—meaning most positive tests reflect actual problems, not false positives. Ironically, many brands have replaced parabens with preservatives that actually cause more allergic reactions.

Researchers reviewed decades of paraben allergy monitoring and testing data, tracking sensitivity rates across standard screening practices since the 1940s to assess how often parabens actually trigger allergic responses.

Funding not disclosed in abstract