I also have Phytolisse, and for my fine hair, it leaves it really nice, but don't put too much. I also use the T3 big round ceramic brush (but make sure to use the size of brush that depends how long your hair is, mine is to the middle of my back). I use the phytolisse when i blow dry in sections, i put it on after i had just sectioned my hair, and i blow dry it, then follow with the cool shot, then as that is done and dried i pull down the next part of wet hair, then i put some on for that whole section of wet hair, then blow dry, and then finish with the cool shot for that section. I repeat it till it's all done, the cool air will relax the hair. and then what i do, is before i put some of that on for the finish, I'll wash my hands, just so it's not too much of the serum going in to my hair, then i put a tiny bit to finish the style, but make sure this time you rub it in till it's well in and that it's a dryer feeling, then just put your hands into you hair, going from bottom to top. hope that helps.