Ultra-Developer (6,12.5, 20, 30 & 40 volume)

Jean Alexander has developed the ultimate power source for any coloring or decolorizing service. Ultra-Developers® give more brilliant, longer-lasting results while protecting the hair and scalp. In fact, Ultra-Developers are so advanced that they improve the results of any cream color.

How do they work? Ultra-Developers are highely stabilized, so they "develop" the color with greater control, working something like a time-release capsule. The interlocking formulations of Jean Alexander Color and Ultra-Developer produce a Color Synthesis™ to process color shades evenly, throroughly and with greater stability for more precise, reliable results. Jojoba oil gives additional conditioning and protection to keep hair soft and manageable. These synergistic effects go well beyond any other developer.