ChantecailleEye Definer Brush DetailsA long tapered brush, similar to a paintbrush, designed for precise eye shade application. Made of luxuriously soft black squirrel hair blend. Designer About Chantecaille: With more than two decades as a senior beauty executive, Sylvie Chantecaille joined forces with daughter Olivia in 1997 to form Chantecaille Beaute. Today, the luxury cosmetics line is recognized worldwide for its technologically advanced skincare and beauty products featuring high concentrations of pure, natural botanicals that nourish and revitalize the skin. Husband Olivier and daughter Alex are now also vital parts of the company.