Toxicological Evaluation of Cosmetics: A Primer via Cosmetics & Toiletries

21 September 2021

As of 2018, Americans have spent nearly $83 billion per year on cosmetic products,1 and an estimated 94% of Americans use a cosmetic skin care product at least once per month.2

As R&D experts know, cosmetics are made of numerous ingredients. These can be synthetic, natural and/or a combination of the two, and are formulated to form the final product to impart specific end use cosmetic benefits.

What functions do cosmetics serve? As set forth in the Food, Drug and Cosmetic Act of 1976, the U.​S. Food and Drug Administ­ration (FDA) defines cosmetics as: “articles intended to be rubbed, poured, sprinkled or sprayed on, introduced into, or otherwise applied to the human body … for cleansing, beautifying, promoting attracti­veness or altering the appearance.”3, 4 In contrast, pharmace­uticals are defined by the FDA as: “articles intended for use in the diagnosis, cure, mitigation, treatment or prevention of disease in man or other animals; and articles (other than food) intended to affect the structure or any function of the body of man or other animals.”5

So by definition, cosmetic products are not intended to produce a systemic biological effect, although some local biological effects may occur. Cosmetics also are not designed to diagnose or treat any medical condition. As such, cosmetic products are expected to be mild and the ingredients used should produce very low risk to consumers.

A cosmetic toxicologist can provide a clear-eyed view of the potential hazards and quantifiable risks of a product based on its composition. This primer briefly explains how.

Read more…

By  Christopher S. Spaeth –  

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