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 2,208 Reviews 2,208 Reviews
3.9 out of 5 stars
5 Star
702
4 Star
838
3 Star
463
2 Star
146
1 Star
59
my profile
people who
purchased
sampled
Hair type
Thick
Fine
Straight
Wavy
Curly
Frizzy
Kinky
Dry
Normal
Oily
Hair color
Brown
Blonde
Black
White or gray
Red
Other
Age
17 & under
18-24
25-34
35-44
45-54
55 & over
Apply
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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Great for Frizzy Hair
Sampled

I rarely blow dry my hair, and the few times I have I've used this product. I avoid blow drying because it frizzes out so badly. This really worked well, though, at maintaining my course hair. Will be purchasing.

5
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Great Styling Product
SampledPurchased

This product is great for curly hair and to beat the humidity! I also love the way it smells. I would give it more stars but I feel like it could hold my hair a bit better. It makes my hair less frizzy but also I feel like it doesn't really hold the curl. Just leaves my hair wavy. The smell outbeats it all!

3
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Number 4
Purchased

Not what I expected. Very very heavy spray. Smells good enough, I was hoping for something a bit more like a dry oil. I'very used this several times trying to love it....hasn't happened yet

1
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Love it
Sampled

I love all of Number 4's products I have received so far. This works great, has a great smell and love the fact that it is also 100 percent vegan!

4
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Works
Sampled

Smells great and works. I am always skeptical of products claiming to tame frizz. It takes a lot to tame my frizzy hair. But this works well. Made my hair softer and smells great. I feel like it took less time to dry my hair, too.

5
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effective but oily
Sampled

this spray was effective at making my hair glossy and sleek but be warned that it's rather slick and will leave your hair feeling oily. i prefer the beauty protector brand,which is also sold from birchbox.

that being said, if you're going for a very sleek or even wet look, this might be the product for you. if you're just looking for manageability, you might want to look elsewhere.

3
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