In 2012 we carried out one of the largest studies in Europe. We wanted to know how many women would be interested in receiving a skin analysis, and the effect that our bestselling product, Formula 8001 Vitamin C Booster, had on the skin. 3,451 women between the ages of 14-64 took part in the three-week-long study. Of these, more than 80% replied that they had experienced a significant improvement in the condition of their skin. (skinplan survey 2012)