Wella

 Color Charm Demi-Permanent Activating Lotion/Developer - Size : 8 oz

What it is:
Wella® Developers are reliable, versatile, and stabilized to deliver remarkable results.

What it does:
Specially formulated for use with permanent hair colors and lighteners. Gentle formula protects against damage. Helps deposit Color Charm® Demi-Permanent Haircolor more effectively onto the hair. Acts as a catalyst to provide long-lasting, even color.

What else you need to know:
Choose Color Charm Demi to glaze, tone, enrich, blend or prepigment. Its no-ammonia formula delivers all of the color and shine without the worry or lift.