Private label products have evolved significantly over the past 20 years and now offer high quality while maintaining lower prices. Retailers are using private label products effectively to increase sales, margins, and differentiate themselves. To maximize the benefits of private label, retailers must understand consumer demand and behavior for private label products. This includes analyzing private label performance, determining the role and image of private label in each category, identifying the most effective promotional strategies, and setting the optimal price gap between private label and national brands. Using consumer demand science allows retailers to tailor their private label strategy to each product, store, and customer segment.