Loreal Dia Light Professional Hair Color #5.66 (Originally-5.66/5RR) Light Extra Red Brown 1.7 Ounce 50 Milliliters Loreal Dialight is a semi-permanent tone-on-tone, an ammonia-free gel-cream color that has been perfectly adapted for colored hair. New acid technology provides ultimate condition, luminous color, and vinyl shine. This is great for offering a color refresh to top up the vibrancy of your color in between your usual permanent color services. This should be mixed in a 1 to 1.5 ratio, Diactivateur 6, 9, or 15 volume. Development time of 20 minutes. Made in Spain *This is a professional product and should be used only by a trained individual. The seller is not liable for any adverse outcome resulting from the use of this product.