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