THIS PRODUCT IS AMAZING. I know Kerastase is pricy, however totally worth it. I bought this instead of Moroccan Oil since it not only contains the HG oil, but many others as well. I put it in my towel-dried, damp hair after a shower. (One squirt should be fine for most, but I have super long hair so I use two). It gives my hair that nice salon scent, leaves it super soft and shiny like no other! Best hair product I've tried. Definitely worth the extra bucks.
I give this product a pretty good review, however, it is the only face primer I've ever used. It has a nice, light consistency and leaves skin smoother than before, although leaves a shimmery finish to the skin. After I apply my foundation/powder/etc, the shimmer isn't noticeable so it doesn't really bother me. After my first try on the product, I didn't think it was doing much for my skin, until I ran out and returned to applying makeup without it. I repurchased the product, it didn't break me out, but there must be better face primers out there.