Description: Schwarzkopf Professional Igora Royal Developer is a professional cream developer designed for use with Igora Royal permanent hair color. Its smooth, creamy consistency ensures easy mixing and controlled application, providing reliable lift, brilliant color results, and long-lasting durability while helping to protect the hair during the coloring process. Benefits: Formulated for exclusive use with Igora Royal permanent hair color Creamy texture allows smooth mixing and precise application Delivers consistent lift and vibrant color results Supports long-lasting coverage and durability Available in multiple strengths: 10, 20, 30, and 40 Volume Suggested Use: Mix Schwarzkopf Professional Igora Royal Developer with Igora Royal hair color in the recommended ratio. Select the developer strength (10, 20, 30, or 40 Volume) depending on desired lift and gray coverage. Apply to dry, unwashed hair, process according to the color instructions, then rinse thoroughly and follow with professional after-color care.