Number 4™ Thermal Styling Spray

While the hair of our dreams is glossy and sleek, our real hair leaves a lot to be desired. Whether your hair is fried and dull from too much heat styling or naturally frizzy, protect it with this nourishing spray. It’s packed with proteins and conditioners that hydrate and heal damage. An added bonus? It’s 100 percent vegan and free of gluten, sulfates, and parabens.

Number 4™ Thermal Styling Spray
3.9 out of 5 stars, based on 2,211 Reviews 2,211 Reviews
3.9 out of 5 stars
5 Star
703
4 Star
839
3 Star
464
2 Star
146
1 Star
59
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What's up with that nozzle?
Purchased

Don't get me wrong, I LOVE this product. It provides great protection when curling/flat ironing my hair and it gives just the right amount of hold, but that spray nozzle! The other reviews are spot on when they say it comes out in a stream. I wish they would revamp this feature so that the spray was a mist, then this would definitely be a 5-star product!

4
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Jet stream spray
Purchased

This product works okay- I have used it on wet and dry hair with good results both ways. (Curling iron waves stay pretty well and I THINK it helps protect my hair when blow drying.) However, especially when I use it on dry hair, I have to spray it on my hands first to distribute it, because the spray shoots straight out, instead of a finer mist. It makes it really hard to evenly distribute and I have even accidentally gotten an earful because of it. Yuck!

3
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great product- poor packaging
Purchased

I love this product- the way it makes my curly hair sleek and silky after I use a flat iron and blowdryer on it.
However, I find the container to be difficult to spray with one hand and impossible if your hands are wet or slippery after a shower. I have to use both hands to grasp it and press down the nozzle! the design aesthetic is nice- sleek cylinder black and white- but not functional.

4
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Like it
Sampled

I received this sample from my Birchbox of the month and I like it . I love my Birchbox of the month

3
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Love this but hate the spray nozzle
SampledPurchased

The nozzle is important because I can't take a little out for carry on through the airport (I travel weekly and never check bags and this doesn't offer a smaller size), and because it when directing where the spray will go, it is difficult. It would be better if a little could be poured into your hand and moved through hair. Other than that I love how this sets my hair up for other products post dry. It gives volume without frizz.

4
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Love
Sampled

I really like this product! I use it all the time, and I highly recommend it to others!

5
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Helps hold curl
Sampled

I have super straight hair and this really helps hold any heat style I do. Smells good as well and doesn't leave the hair stiff

4
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Thermal Styling Spray
Sampled

This is a very good product. I style my hair all the time and I used this and it made my hair feel and look really good.

4
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Love
Sampled

I've tried this before and I really liked it I'm happy to have an additional one to travel with and you praline on purchasing full-size

5
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Hate the smell, and very sticky!
Purchased

Tried this after using the Number 4 Super Comb Prep & Protect (which I love!!). The smell is horrible, and very "old lady" like. The spray is also very hard to distribute evenly through my hair because it sprays in a stream. Last, it's a very heavy and sticky product. I have to clean my straightening iron every time I use it because it leaves behind a nasty gunk. I won't be purchasing this product again.

2
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