Editor's TipEditor's Tip

Keep long hair healthy from start to finish with the Kérastase Cristalliste Set for Fine Hair or the Kérastase Cristalliste Set for Thick Hair.

Kérastase

Birchbox Breakdown

If you’ve ever grown out your hair (or tried to maintain a long mane), you know how important it is to keep your ends healthy and strong. We like to stretch out the time between our salon visits with Kérastase’s Masque Cristal, a deep conditioning treatment specifically designed for long hair. It nourishes and protects strands (read: prevents split ends and brittleness) without weighing them down, leaving hair soft, supple, and full of healthy bounce.

How it Works

Hydrating polymers act as eco-friendly conditioning agents, smoothing hair follicles and leaving ends sleek and polished. An oil-absorbing system removes dirt and impurities from roots without weighing hair down, while aloe vera tames frizz and adds silkiness. Finally, ceramides and candallia care—two key hydrators— nourish hair and protect each fiber from damage.

How to Use

Apply a quarter-sized amount of product to wet hair, gently working into the mid-lengths and ends. Rinse thoroughly.

More for You!
  • Free returns within 90 days of purchase
  • Extra samples and gifts in the Bonus Shop

Product Reviews & Sample Feedback

356 Reviews
3.6 out of 5 stars
5 Star
97
4 Star
109
3 Star
94
2 Star
37
1 Star
19
my profile
people who
purchased
sampled
Hair type
Curly
Dry
Fine
Frizzy
Kinky
Normal
Oily
Straight
Thick
Wavy
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

Unimpressed
Sampled

It burned a little bit when it was in my hair. My hair did feel silkier when I got out of the shower, but once it dried was no different than if I had used my normal bargain products.

The foil package for the sample was very difficult to open and contained very little product.

1
Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No
Did the job.
Sampled

Product left my hair soft as it said it would. The only reason I would not leave 5 stars is because specific instructions for using it were not on the packaging.

4
Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No
Not impressed
Sampled

Not really interested in glitterizing my hair, and didn't appreciate the cheap add-ins. Not really any different than other conditioners I've tried except for the glitter bomb. No thanks! Not twelve!

1
Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No
Smooooooth
Sampled

Left my hair feeling wonderfully smooth! I get split ends a lot, so was anxious to try out this product. Glad I did!

5
Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No
not great for my hair type
Sampled

I found the masque kind of greasy and it weighed my hair down. I guess it hydrated my hair somewhat, but I had to shampoo again before my hair felt normal.

2
Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No
Nice, but wouldn't buy
Sampled

This product worked well for me - left my hair very silky and smooth. However I probably wouldn't buy it because I already use a similar product for half the price.

3
Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No
Love this masque
Sampled

I've used this hair masque for a few years, it's the best that I've found. Leaves my hair feeling silky, soft and healthy.

4
Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No
Works great!
Sampled

When I used my sample, I had recently burned my hair using my curling iron. This treatment fixed my hair, and made it feel so much better!! Note to self, never use the max setting on the curling iron!!

5
Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No
Is that price for real?!
Sampled

This is a decent hair masque. It was thick and luxurious feeling upon application and had a pleasant scent. After rinsing, my hair was easy to comb through and when it dried it was nice, but not as nice as when I use my regular conditioner and leave that in for 10 minutes then use It's a 10! miracle product. I could buy a bunch of amazing different products for the price of this, including Macadamia hair masque, which is a lot better in my opinion. AND I HATE FOIL PACKAGES.

3
Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No
Glorified conditioner
Sampled

This product was fine but I didn't see any noticeable improvements over my regular conditioner. I do not have the type hair that this is made for though.

3
Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No