Our test protocol at a glance:
1. First of all, L’Oréal Paris only uses ingredients in its skincare that have undergone a rigorous evaluation before being put on the market. Each of the ingredients is analyzed by scientific experts in the light of available published scientific data. In addition, the association of ingredients with the doses used in the formulas is subjected to a robust analysis, thanks to a unique internal database, the result of many years of research and expertise in the skin which covers the entire history of the skin. heritage of toxicological and clinical data from L’Oréal Research.
2. Tolerance assessment
Following this research on ingredients, a safety assessment platform was set up to validate the safety and tolerance of ingredients and formulas. In vitro tests on reconstructed skin are one of the many methods available (and developed by L’Oréal) which can be used to assess corrosion, skin and eye irritation, or even the photo-toxicity of certain ingredients or products.
For more information on tests on reconstructed skin, discover our article on the EPISKIN laboratory, the world expert in reconstructed skin, with the biotechnological know-how acquired by L’Oréal in 1997.
3. Use tests under dermatological control
In an even greater security approach, clinical studies in vivo under real conditions of use are carried out under dermatological control by independent institutes, on a panel of volunteers, at least 30% of whom have sensitive skin.
4. Efficacy studies
The effectiveness of ingredients and skincare products is often initiated by in vitro tests on reconstructed skin, and it is always supplemented by clinical studies under dermatological control under real conditions of use or by instrumental measurements, carried out by independent institutes..
5. Product launch
An L’Oréal Paris facial treatment can only be started if all steps 1 to 4 mentioned above have been completed and all have given satisfactory results.
6. Cosmetovigilance
The safety of our products continues to be closely monitored throughout their lifespan, by collecting and analyzing adverse reactions reported by our consumers or healthcare professionals worldwide. After a thorough study of the possible cause and effect relationship with our products, we may sometimes decide to adjust the composition of the product to correct certain effects – even very mild unwanted ones, in order to guarantee our consumers a safe use of our products. all confidence.
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