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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.
LOVE LOVE LOVE this stuff. I only wish the sample would have been larger and/ or easier to use.4
This would be fine if you had thick, long, straight hair. My hair tends to be fine and is wavy/curly and thus doesn't benefit from a serum designed to tame flyaways.3
As a kerastase product user, I was happy to try another product that works great with my hair. Just a couple of drops makes my hair shiny and have less frizz.4
I am very nervous about hair serums with my hair type because it is very easy for my hair to look greasy/ dirty. I used this only on the ends of my hair and I really do like it. I used it on towel dried hair before I blow dried only bc I never have good luck on dry hair with this sort of thing. I gave half of the dmaple to a friend who has dry/damamged/ frizzy hair and she loved it on her dry hair.4
I liked the texture and the scent of this product a lot. I followed the instructions sent with it, but didn't notice a huge difference in the shine or texture of my hair. Perhaps I need to use more.4
I love the hair serum. It smells really good. But the price for the full size is just too much.5
I like the light scent that this has, but the size of the sample made it hard for me to tell how effective it is. I like the idea that it shines and smooths, but mostly only noticed a little more shine than normal. I don't think I would spend $42 on something I'm not sure works that well. Nice to try it though!3
I used just a small amount at the ends of my hair since I have such fine hair and it made my hair look greasy.1
Wow, this product is great! I have tried many serums that I've sampled through birchbox and I think this one made my hair the smoothest. And it smells great. For reference, I have long, thick straight hair.5
Love this Hair serum. It is light and does not make my hair too oily. Love the brand so it is no surprise that I love this serum. I put it on while I am blow drying.5