Spincontrol is a CRO specialised in efficacy tests of cosmetics. White complexion and dark spots being a current claim we have developed a new, original and different technique than the usual techniques like chromameter. Indeed, the colorimetric analysis allows us to choose the studied area and its size. There is no contact with the skin so there is no problem of occlusion like with chromameter. This new technique underlines the whitening or loss of pigmentation effect of cosmetic products (surface and perimeter calculation of the pigment spot, determination of the spot's color).