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

889 Reviews
3.8 out of 5 stars
5 Star
255
4 Star
307
3 Star
261
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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Just ok
Sampled

Was kind of surprised to receive such a small sample size. Hard to determine the effectiveness from one time use. Didn't seem to do make a difference in my hair though.

3
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Love this
Sampled

Great shampoo! Smells great and my hair feels amazing. Leaves it super clean and doesn't weight it down.

5
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Sample was too small
Sampled

This stuff may work miracles but the sample was just too small to know for sure. It only had enough for one use and you can't know if something really makes a difference after one time.

2
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Not for me
Sampled

I didn't care for this- it was nourishing, but I have a problem with my hair being too oily- causing this to make the problem worse. I have other shampoos I like better.

3
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Nothing special
Sampled

Didn't end up liking this product. Felt no change in volume or texture in my hair. Nothing special!

3
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Simple scent
Sampled

Packaging was very difficult to open in the sample size. Enjoyed the simple scent compared to the overpowering scent I had been receiving in my boxes.

4
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