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 2,210 Reviews 2,210 Reviews
3.9 out of 5 stars
5 Star
703
4 Star
839
3 Star
463
2 Star
146
1 Star
59
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not a product I normally use
Sampled

I don't use flat irons often. My hair is very thin and fine and I don't have a need for this product. I tried it, but it left my hair feeling oily and weighed it down.

2
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I Like it
Sampled

I have been trying different heat sprays and this is a good one. It did not leave my thin hair greasy or heavy.

4
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Love Hair Products
Sampled

I love Love Love this product. did not make my hair greasy stiff of oliy. super light weight serves its purpose. Used this product to completion.

5
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Great smelling heat-protectant
Sampled

I use this every day before heat styling with my flat iron. The smell is great, doesn't go on thick or greasy, and leaves my hair feeling soft and smooth. I like that it is a pump spritz instead of an aerosol because you can spritz and let the product just fall onto your hair. You don't need a lot to do the trick, which is nice, too. Love this product!

5
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good product

left my hair a bit sticky but it worked wonders on daughters hair :)

4
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Great hold
Sampled

Love the smell and hold of this spray
Bought a full sized and love it great for curly unruly hair

5
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This is not a spray
Purchased

This product is equivalent to a non aerosol stream. The stream is impossible to target on your hairstrand before using your hot tool. lt is so silly that you stream it on your face, so do makeup after hair when using this. Due to the ridiculous precision of aim required l use my hand to lift my hair and shoot away. l then use my hand to smooth the product evenly, then run a flat brush to even out. You must blanket cover and smooth this. After that you can finally style. lt does protect and aid somewhat to holding the hairstyle. l wish they would make this into a spray. This stream on a single section via nozzle as per directions is almost universally impossible and for practical purposes universally stupid.

3
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Thermal Spray

This worked great with my flat iron. It's helped with my ends.

4
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Wasn't a Fan

While I have loved all other No. 4 products I have tried from BB, this one falls short. The smell is amazing, but like others said, the nozzle is very weird. I also have very fine hair, and this product seemed to make it feel more weighed down when I used it.

2
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Didn't like.
Sampled

The smell on this product was too overpowering for me. I had a headache all day from the smell. It did seem to control my hair, so if you can take the smell, go for it.

1
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