In this full day seminar you will learn the science behind the color formulations of Patrick McIvor. Industry Hair Color Icon Patrick McIvor, award winning colorist who has worked with some of the most successful lines in our industry history will share with you what made his color most successful and what can make your hair color equally successful. This is a lecture format with workshop elements. We will learn the science behind hair color on wefts, not mannequins to allow for more exposure to different color options. This is an Advanced Color Program. Recommended for those with a comfortable understanding of hair color principles.