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UV filters in everyday cosmetic products, a comparative study

Research Square (Research Square) 2023 Score: 30 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Céline Couteau, Anne Philippe, Jean‐Michel Galharret, Emilie Metay, Laurence Coiffard

Summary

This study surveyed UV-filtering chemicals across 742 cosmetic products and found widespread presence in everyday personal care items. UV filters are increasingly detected as environmental and biological contaminants, reaching waterways through skin absorption and washing, where they can interact with microplastics and other pollutants.

Abstract Today, UV filters are found as contaminants in a variety of biological fluids and environment, e.g. in vegetable crops and surface water. This is because UV filters are widely used in everyday products. In this context, we focused this study on cosmetic products. The study of 742 cosmetic products, excluding actual sunscreen products, but including hygiene, personal care and make-up products and perfumes revealed that the most common UV filters present are butyl methoxydibenzoylmethane, octyl methoxycinnamate, octocrylene, octyl salicylate and titanium dioxide. Few UV filters are found in the hygiene products and deodorants and toothpastes are completely free of them. Conversely, make-up and perfumes are frequently formulated with at least one UV filter.

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