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Ever since we watched the first season of “Gossip Girl,” we’ve been huge fans of Blake Lively’s flowing waves. So we were excited to learn that the blonde actress was the inspiration behind Kérastase’s new serum. Specially designed for long hair, the leave-in treatment adds a high-definition shine while sealing each cuticle (bye bye, split ends). Plus, the light, gorgeously scented formula won’t weigh down your strands.
Since this was the "bonus" sample, it was very small. I only got two uses out of it; it did add shine to my hair but I didn't see a big difference with the frizz (I used on semi-rainy days though). I would have liked a few more uses to judge effectiveness.4
I really liked this product it made my hair very smooth. I love the scent of the product.5
This product was all right. It smelled nice and wasn't heavy but didn't do much.4
Kérastase Cristalliste is an absolute must for any beauty cabinet. Although I would not use it on my roots, the lustre and softness it imparts on the ends of my hair - as well as it's soft fragrance - make it worth every penny!4
This was a nice lightweight serum that added a lot of shine to my hair. I preferably serum from a different brand though4
This stuff smells great and definitely adds shine to my hair, but I think the full size is just a bit too expensive. I'll stick with my drugstore serum for now.4
This product left my hair feeling soft, and it's very light. Still had frizz, but not as bad as usual.5
I love Kerastase! This product was amaaaaazing! Smells great! Smooths frizz! Adds shine! Nourishes hair! I mean there is literally nothing not to love about this product! Obsessed!5
This was good but there are a lot of other options that are better/cheaper in my opinion. I use a hair serum constantly and this one seems to be fine so I wouldn't not try it but know that for the price tag it isn't anything special.4
Will definitely purchase - my hair was so shiny after! A little heavy at first, but washes out nicely.4