Milbon Sophistone Processing Lotion is a low-volume developer designed to activate Sophistone Demi Color for controlled, deposit-only results. This formula supports even color application while maintaining hair condition. Ideal for toning, glossing, and refreshing color-treated hair, this processing lotion helps enhance shine, improve manageability, and support consistent color results without lifting natural pigment. Benefits Designed for use with Sophistone Demi Color Low 6.6 volume formula for deposit-only color Helps maintain hair integrity during coloring Supports even and controlled application Enhances shine and color appearance Suggested Use Mix 1:1 with Sophistone Demi Color. Apply to clean, dry or damp hair. Process for 3–20 minutes as needed. Rinse thoroughly and follow with aftercare.