Number 4™ Birchbox Exclusive Hair Revival Kit

Let’s face it: We subject our tresses to a lot of stress. From teasing to highlighting, it’s a wonder they haven’t broken up with us yet. To help repair our relationship (and our split ends), we swear by this kit from Number 4™ Hair Care. It’s got everything you need to get rid of product buildup and bring back smoothness and shine. A $76 value!

Number 4™ Birchbox Exclusive Hair Revival Kit
4.5 out of 5 stars, based on 68 Reviews 68 Reviews
4.5 out of 5 stars
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46
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12
3 Star
7
2 Star
1
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LOVE Number 4
Purchased

This stuff is a MIRACLE for my hair! I use about once a week to give my hair the pick-me-up it needs. It also smells amazing! I can't say enough great things about these products - the only downfall is the price. Totally worth it though if you can afford it!

5
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Love it
Purchased

I use the clarifying shampoo and mask once a week to give my hair a fresh start. Smells great and leaves my hair feeling amazing

5
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My hair has never been so soft
Purchased

This kit is amazing! The shampoo is concentrated, so this bottle just keeps going and going and going... The conditioner is truly a deep conditioning treatment, but it also rinses completely clean, so there's no gunky residue to start your styling with. The Prep and Protect spray is perfect for my very fine, tangle-prone hair. No greasiness or added weight, just protection from my blow drier and round brush! I'll be honest, I didn't try the oil, because, as I mentioned, I have very fine hair and I'm a little afraid of any oil treatments/products.

5
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Good stuff
Purchased

I first sample this shampoo in my birchbox and liked it so much I was willing to try the whole set. I was not disappointed at all. The shampoo is hands down my favorite and the hair masque does wonders on my hair. The spray leaves my hair soft and shiny on days I skip conditioning. I feel like it was well worth the money.

5
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The Hair Doctor
Purchased

This set of products was amazing! I LOVE the shampoo- I feel like it strips away all the dirt and oil and gets my hair truly CLEAN in a way that no other shampoo does! After I shampoo with this product- my hair is clean, light and bouncy for days! The conditioning spray is like the cherry on top- it protects my hair from styling heat and allows my hair to grow long and strong. Lastly, the repair mask keeps my ends looking brand new. A great bundle that has lasted me months!

5
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Great stuff
Purchased

I bought this because I received a sample of the Number 4 clarifying shampoo and loved it. I'm so glad that I did. I adored each and every product I pulled out of the box more than the last.

5
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favorite!
Purchased

adore this kit. for sure one of my favorites. makes my hair smell so nice and makes it so manageable.

5
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awesome kit!
Purchased

i order these things in bulk. it has seriously revived the health of my hair. never going to use a different brand! oh and smells great!

5
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Great Product Line for Dry, Overworked Hair
Purchased

I recently went from brunette to blonde and took a trip to Costa Rica where I spent alot of time in the water and sun. This product revived my hair. The scent is pleasant and the products preserve color as they are sulfate free. The shampoo doesn't strip your hair of its natural oils and the leave in conditioner makes tangled, dry hair more manageable while protecting. Great products. My new love.

5
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Love the whole kit!
Purchased

I am officially obsessed with Number 4. I was torn because, given the priciness, I was considering hedging my bets and buying the volumizing shampoo (I have fine hair, and not enough of it). In the end, I decided to get this b/c I already knew I liked the clarifying shampoo and I *love* the leave in treatment. Other reviewers note a smell - I don't really notice much of one at all. The serum and masque are terrific as well. All in all, would highly recommend buying.

5
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