Rationale has pioneered isotropy in dermatologic pharmacology. Every formulation we create is what we call Isotropic or "skin identical": meaning that every molecule delivers perfect synchronicity between active ingredient, formulation and your skin. All of this contributes to skin vitality and luminosity and an unprecedented level of efficacy and elegance.
Skin is our inspiration. Our research library. Our guiding light.
How it looks, feels and behaves when it is in a state of optimum health and radiance. What it needs throughout life to constantly bring it back to this point of vitality and luminosity.