I have tested Kérastase Blond Absolu Cicanuit Night Serum for a few weeks and think it has a luxurious feel and good consistency! I have fine hair that easily gets weighed down by products, but this serum did not weigh my hair down at all.
I used it before I brushed my hair in the evening, and in the morning my hair felt much softer, smoother, and more hydrated. It also made the ends less frizzy. The consistency is light and silky, and you only need a small amount of the product.
The scent feels luxurious but is a bit too strong for me personally. Despite that, I think the product works very well and makes my hair shiny and soft.
I am participating in a test panel and received a free test product.