RATIONALE 首创肌肤同源配方，让活性成分、配方与您的肌肤完美兼容，以前所未有的功效，让肌肤焕发由内而外的水润光泽。
RATIONALE perpetually evolves in response to our profound understanding of human skin.
Our research, innovation and formulation science is informed by this knowledge of skin in its optimal state of health and radiance, honouring what it needs throughout life to express vitality and luminosity.
RATIONALE has pioneered Skin Identical formulations, delivering perfect synchronicity between active ingredient, formulation and your skin. An unprecedented level of efficacy and elegance is reflected in a dewy radiance that glows from within.