The US Cosmetic Ingredient Review has long prioritized conducting safety assessments based on ingredient frequency of use (FOU), but historically that data has been limited to voluntary information submitted by industry to the US Food and Drug Administration, which can paint an incomplete and potentially inaccurate picture of the cosmetic products market.
New Era For CIR: Expert Panel Meets As Mandatorily Reported Ingredient Data Pours In From FDA
Now that reporting of cosmetic ingredient use to FDA is no longer voluntary, the Cosmetic Ingredient Review is wading through a tide of data generated by MoCRA registration and listing deadlines.

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