Biologique Recherche Skincare offers the very best your skin can get. The effectiveness of All Biologique Recherche Formulations are based upon a clinical approach to skincare. Our products are created using only the highest quality of active ingredients possible. We cold formulate our skincare to keep as much of the ingredients active intact, and most of our products contain over 20% concentration of active ingredients. This, combined with no extra fragrances or animal testing, ensures the least chance of allergic reactions possible.