Editor's Tip Editor's Tip

Before applying this leave-in serum, wash your hair with Kérastase’s shine-boosting Cristalliste shampoo and conditioner.

Kérastase Cristalliste Lumiere Liquide - Shine Serum

$42.00 Ships Free
50ml

Availability: In stock

$42.00

Can’t get enough of Kérastase? We feel you. For a limited time, get a free Kérastase Discipline Keratine Thermique - Anti-Frizz Blow-Dry Primer deluxe sample with qualifying $35+ purchase of any full-size product(s) from the Birchbox Shop. Use code: ANTIFRIZZ at checkout.

Birchbox Breakdown

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.

How to Use

This luxe serum is made with sophisticated light reflectors to add mega-gloss and shine while smoothing away frizz. A generous amount of aloe vera—high in natural amino acids and vitamins—softens and restores dry, brittle ends (the number one problem for girls with long locks).

More for You!

Product Reviews & Sample Feedback

768 Reviews
4.1 out of 5 stars
5 Star
319
4 Star
277
3 Star
131
2 Star
29
1 Star
12
my profile
people who
purchased
sampled
Hair type
Thick
Fine
Straight
Wavy
Curly
Frizzy
Kinky
Dry
Normal
Oily
Hair color
Brown
Blonde
Black
White or gray
Red
Other
Age
17 & under
18-24
25-34
35-44
45-54
55 & over
Apply

Most Helpful Customer Reviews

Kérastase, is that you?
Purchased

I can't believe this is a Kérastase product. I used it as usual. Hair looks shiny and amazing, as usual. But the next day, hair looks and feels like straw- not usual. I'm returning this (Birchbox has a generous and fair return policy). I'm so disappointed.

1
Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No
I loved the effects.
Sampled

I loved the effect and the smell of the this product. It was light and made my hair feel great.

3
Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No
shiny hair like u won't belive
Purchased

this is 1 of my most favorite products for my hair of all time. make ur hair super shiny after you flat iron or curling. even more awesome when u put a little in ur hair after showering

5
Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No
My favorite hair serum!!!
Sampled

I use a lot of hair serums or leave ins but this is certainly the best. The smell is divine, and the shine from just one use is kind of unbelievable. Just a couple of drops does the trick and I even notice my husband likes to smell my hair more which is hilarious but welcome.

5
Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No
Love
SampledPurchased

This beauty product is a part of my every day routine. The serum leaves my hair feeling weightless and smooth. I've also noticed a difference in the number of split ends in getting. My hair has definitely improved since using this product.

5
Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No