Kerastase Paris Nutritive Oleo-Relax Smoothing Mask

My friend uses Kerastase Mask and recommended this for my frizzy hair. It is a very thick texture when scooped from the bottle, thou it still spread easily on the hair. Washing off takes a while as its "soapy" feel does take a while to wash off. After using it for a few months. I notice that my hair has become much more shiny, smoother, soft and silky. In general, my hair definitely looks healthier and less dull. The frizzy hairs is abit lesser, but I was hoping for a more obvious effect at taming down my frizzy hair as one bottle alone is quite expensive, thou it can last very long.