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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.
This serum gave my hair moisture and got rid of frizz5
It does its job well! I have curly, semi-frizzy hair and this contained it and gave just enough shine.5
I have oily hair and this product just weighed it down even more. I used it once and passed it along to my sister to use.3
It did a pretty good job of reducing the frizz! It smells fantastic. I'm not sure it added much shine tho...4
I love the scent of this serum! It smells like a pricey hair salon in the best way possible - fragrant and kinda perfume-y. It also leaves the ends of my hair very smooth and shiny. If only it wasn't so expensive, I would definitely purchase it.4
Works really well on my hair. Only needed a little, even for long hair. Smells nice.5
Love this hair serum. I apply it after blow drying/styling my hair to my ends. Keeps them from looking brittle and dry, and instead leaves them weightlessly shiny5
This serum is lightweight, and added incredible shine. It didn't really help with frizz but i liked the shine it gave me.4
I used this serum just on the ends of my hair, as directed. I can't say I noticed any significant decrease in the appearance of my split ends or frizziness. The price is insane for not doing much!3
I had high hopes for this serum, but it was just fine, not great but not bad, just OK. The sample was really small, I only got 2 uses out of it (and directions said 1-2 pumps but the sample wasn't a pump so it was difficult to know how much to use). It did make my hair shiny and didn't weigh it down, but it was only moderate in taming the frizz. I'm glad I got to sample it in my monthly birchbox, but I wouldn't splurge to buy it.3