Here at Yves Rocher, we decide the concentration of our active ingredients in each of our formulas. Our goal is to determine the exact dose of active ingredients required to ensure optimal beauty effectiveness for the skin while respecting safety. Whatever the concentration of active ingredients is in our formulas, all of our products undergo instrumental testing to validate their effectiveness. To provide the concentrated nourishment that mature skin needs, the Oleo-infusion formula has been boosted with 30 Previous Oils compared to the other formulas in the range.