Goldwell Color Serum Intensive Conditioning 12x0.6 Ounce 12x18 Gram Use this intensive serum to instantly lock-in the hair color. This helps to maintain your salon color up to 22 washes. This is blended with a micro-PROtec complex and Luminescence. Provides instant care, manageability, softness, and optimal combability. Suitable for thick to coarse color-treated hair.