I have been using this product for about a year. It really improved the condition and manageability of my hair. Really is (was) a wonderful product. Although expensive, I only needed two pumps (small amount) for my shoulder length hair. You rub it in your palms until it liquifies then fluff through hair. It really helped styling with a blow dryer and my color-treated hair shines! Recently, I learned Kerastase has discontinued this product. I purchased an extra and will be disappointed when it is gone.
Thousand Oaks, CA