Editor's TipEditor's Tip

Further strengthen weakened hair shafts with Kérastase Masque Force Architecte.

Kérastase

Birchbox Breakdown

Just like the sands of your favorite beaches, hair can erode over time. And just like you might erect barriers to the sea, your hair needs strategic reinforcements. This restoring shampoo heals strands from within to strengthen limp hairwhile imparting a smooth shine on the surface.

How to Use

Apply a quarter-sized dollop to wet hair and scalp. Massage until lathered, then rinse thoroughly.

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Product Reviews & Sample Feedback

901 Reviews
3.8 out of 5 stars
5 Star
258
4 Star
309
3 Star
268
2 Star
44
1 Star
22
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Most Helpful Customer Reviews

So So .... Too expensive
SampledPurchased

I liked the sample and ordered the regular size but found after using this product on a continual basis, it washed out my hair color and left my hair very dry. I will use it up on a limited basis but I won't reorder this one.

3
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product seems fine

This had a good scent and certainly cleaned my hair however with such a small sample it was difficult to tell if it would make a difference with my dry hair over time.

3
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Nope

I bought this full size from my hair dresser, and I hate it. Makes my already thin hair heavy and stringy, and I think it's horribly overpriced.

1
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:-/

This was nice. I didn't notice major improvements. I have fine hair and this wasn't too heavy.

3
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My favorite hair product ever
Sampled

All my hair product is Kerastase. It's by far my favorite hair product I have ever used.

5
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Smooth and Rich
Sampled

I love everything from this brand. It really does make a difference in how smooth and quenched my often dry hair can be after washing and conditioning.

5
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Alrifht
Sampled

This shampoo is alright. Honestly my hair was more tangled after a shower than normal. I felt like I couldn't really get the full effect because I didn't receive the conditioner as a sample too.

3
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Not effective
Sampled

I only got one use out of the package and couldn't tell any difference in my air at all. The smell was nice and it lathered up nicely. I have thick long hair.

3
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Like the smell
Sampled

Love this product, i used it and my hair looks great

5
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Shamppo
Sampled

This is a great product. I will def be purchasing in the future. My hair is thin and I process it a hunch with color and straightening. This helped a lot.

4
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