In the last ten years, skin detection has been a milestone in most of the computer vision applications. But till now, there is no robust skin detector. The different degrees of the skin tone color are the obstacle that faces skin detection process. This paper proposes an adaptive skin modeling and detection technique which is based on face skin tone color. Face is a good indicator of different characteristics of skin tone color where it carries significant information about skin color. Skin modeling aims to develop adaptive margins of skin detector. These margins have been obtained after applying an online dynamic threshold to the pixels gathered around the major and minor axes of bounding rectangle of detected face. Experimental results show that the proposed method has promising results compared to state-of-the-art skin detection methods.