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 973 Reviews 973 Reviews
3.9 out of 5 stars
5 Star
317
4 Star
384
3 Star
185
2 Star
64
1 Star
23
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Worth the price
Purchased

I have naturally wavy and frizzy hair that I straighten at least twice a week. The first time I used this product I learned that less is more. I couldn't run my fingers through my hair so the second time around I used it sparingly and the results were amazing. My hair was soft and even looked like I went to a salon.

4
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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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Smooth and silky

I have received a different Number 4 product before that I loved so as soon as I saw this I was super stoked. I've actually cut down on the amount of styling I do to my hair but I had to try this immediately. A couple of spritzes and brush through my dry hair and DANG SON, when j straightened my hair it was so soft and silky and shiny. Great product!

4
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Good product

This was a lightweight styling spray that was effective and didn't leave any residue. It gave a long lasting hold and I will purchase this product.

5
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great heat spray

This is one of the best heat sprays I've found in a while. AND It smells good !

4
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loved this product

I have super frizzy hair and I sorted my hair with product before going to the beach... it made my hair soft and easier to manage with all the wind blowing

5
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Thermal styling product

I am always searching for new products to try since I flat iron and curl my hair often. I give this product a 10!

5
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Thermal spray

This was m favorite item in the box !!! Smells great and no frizzies

5
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