Strategy to Avoid Skin Sensitization: Application to Botanical Cosmetic Ingredients

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Abstract

Assessment of skin sensitization potential is mandatory for ingredients dedicated to top-ical applications. A battery of in vitro tests covering the key steps of the Adverse Outcome Pathway (AOP) for skin sensitization has been recommended to replace animal testing. However, despite international guidelines on in vitro methods, there is no universal approach defining their combina-tion. The purpose of this work was to assess skin sensitization of botanical ingredients relying on a previously developed in vitro testing strategy. This tool focused on complex and poorly water-soluble substances, which were not already covered. Sixteen botanical extracts were tested in a sequential approach, starting with Sens-Is, supplemented by Organization for Economic Cooperation and Development (OECD) in vitro methods when necessary. The results on the selected well-known botanical sensitizers complemented the relevance of the strategy. Testing on experimental botanicals could detect skin sensitizers. In addition, phytochemistry was a determining support to identify and remove the components at the origin of the effect. Altogether, these results enlarged the scope of the methodology to various ingredient categories and chemical natures, contributing to place on the market new ingredients, safe for workers and end-users.

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APA

Puginier, M., Roso, A., Groux, H., Gerbeix, C., & Cottrez, F. (2022). Strategy to Avoid Skin Sensitization: Application to Botanical Cosmetic Ingredients. Cosmetics, 9(2). https://doi.org/10.3390/cosmetics9020040

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