I used this product in conjunction with the suitable shampoo.
Both products have resulted in my colour being brighter and more intense. An added bonus was that my hair did not look damaged, nor was it brittle. Initially. my hair was shiny and clean looking too and felt fabulously light.
After a few washes however, I seemed to get a build up on my hair which made it dull. I don't know if that was from the shampoo, conditioner or both. Washing with a different shampoo solved that problem and now I am delighted to say my hair is back to looking like a stunning mane (even if I do say so myself)
A little goes a long way, pleasant fragrance, not too "gluggy" and seems to do a good job as far as conditioning goes. I wouldn't apply anywhere near the roots though as it does seem a little heavy