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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.
I enjoyed this sample a lot. I have very fine hair, and I was worried that this product would make my hair look greasy. It did not! It smoothed flyaways and made my hair look shiny, not dirty. It also smells great!5
I usually have problems finding hair products that promise what this does that don't weigh my hair down, but this is light and smooths my hair, leaving is shiny and not frizzy.4
I really like this product! It goes on super light and leaves no residue or crispiness when hair dries. It just leaves hair feeling light, shiny, soft, and nourished. It's quite wonderful! It has a pleasant light smell.5
Really smooths my ends without making them feel or look greasy .5
This stuff is great! I love how it is not greasy at all and makes my hair look like I just left the salon!4
My hair breaks easily and is frizzy at the same time. I think this is the product that fixes both problems!4
I like this serum but it's not necessarily the best I've ever tried.3
It's a shine serum that works surprisingly well on my hair.4
This product definitely smooths frizz out, but it left my hair feeling a bit heavy and weighed down. It smelled nice though.3
I have always struggled with baby hair that is impossible to control and seems to stick straight out of my head, especially along my part line. A tiny amount controls those fly-aways and I no longer look like I stuck my finger in a light socket before work. Plus, it's light enough that it doesn't weigh down my fine hair. Love it!5