Kérastase Nutritive Nectar Thermique
This product excited me the most with the results. It's a heat protection and leave-in conditioner in one meant for dry hair. It's a light cream, truly nothing too heavy, in fact I find it hard to overdo on my hair, but others whose hair aren't so dry might find it heavy if used too much. It glides on the hair with ease and even before blow drying you can feel how your hair feels more silky. During and after blow-drying my hair feels incredibly silky and very soft, the only product that I can compare the feeling to is Tigi's Serious Conditioner, but this goes to an even higher level. My hair looks shiny, but not much less frizzy, I tame frizz with a bit of silicone oil like Elixir Ultime (or Macadamia,Orofluido,...) and Tigi's Spoil Me. The feeling lasts for three-four days and my hair remained soft and silky, but my ends did get a bit knotty as usual.
I really appreciate it for it's moisturising properties. If I had to choose my favourite heat protection, this one and theTigi S Factor one are neck to neck, but I use them in two different ways, Tigi on dry hair because it's more oily and Kérastase on damp because it's a cream (I use a lot of heat protection, I apply it every time I use a heat tool, so before blow drying and then again if I'll use a curling iron).
It's 19 € for 150 ml which is actually a very nice size, since it just glides on the hair and you don't need to use much. For example TIGI Catwalk Sleek Mystique Blow Out Balm contains only 90ml for 15€ (well, I got it for 9€ on offer) and I have to use quite a lot pumps. If you really want something from Kérastase, I would definitely go with this first.