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

912 Reviews
3.8 out of 5 stars
5 Star
263
4 Star
311
3 Star
269
2 Star
46
1 Star
23
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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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Seems to work
Sampled

My sample was only a foil packet so I wasn't able to use it enough to form an opinion or see a difference in my hair.

5
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Good
Sampled

My hair felt very manageable and soft after using the shampoo, without making it too frizzy.

5
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Decent Shampoo
Sampled

This shampoo didn't compare to those I currently keep in my arsenal, but it is better than drugstore brands. This gets the job done, it gets your hair clean but it didn't leave my hair softer or have a particularly terrific smell.

4
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Review of product
Sampled

I love this it made my hair feel and look healthy.

5
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Worked better than expected
Sampled

Had heard great reviews of this product however was still slightly skeptic as had previous dull results with other brands but not only did it leave my hair clean shiny and smooth it also did not weigh it down.

4
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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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