Nicole Kidman was using the CURR Seratopical skin care line before she ever became a paid representative of the company. There is your proof right there that the product works.
Nicole Kidman has a multi-million dollar movie and television career that depends on her skin looking its absolute best. There in no way in the world that she would be using CURR Seratopical skin care product line if it was not the very best option she could find anywhere.
It's great to have Nicole Kidman as the company's official Brand Ambassador to get the word out but her own personal use of the CURR product line is the most powerful endorsement you could possibly see.