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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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I love number 4
Sampled

I could probably use every number 4 product and love them all, just because the smell is incredible. Not only does it smell good, but It felt like it was actually detangling my hair.

5
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Did exactly what I wanted
Sampled

Nice non-heavy spray. Didn't weigh my hair down yet stayed in place for curls

5
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Great!
Sampled

I have to use thermal spray when I blow-dry, because I have fine hair that's prone to breakage. This made my hair look full and healthy but still felt very soft, and it didn't weigh down my (straight, blonde) hair when it was all dry. I like that it's vegan too!

5
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Smelly, tacky spray
Sampled

I'm always looking for a good heat protectant spay, but this just didn't cut it. The nozzle got clogged and the smell is too overpowering. I want to like the Number 4 line, but the smell is too intense - kinda old lady like. I am quite sensitive to smell though. Also seemed to leave a tacky feel.

1
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vegan thermal spray
Sampled

I like that this spray is vegan and is packed with proteins. I use it on my extensions prior to straightening. I don't like the smell, that's my only con to this product. Will likely purchase!

3
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smells nice
Sampled

i didn't mind this product, it smelled great and was an easy application but always wonder if these thermal protector products actually work...especially a spray.

4
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Lightweight smells great
Sampled

I haven't used this much but the few times I have I really enjoy it. It does on light, has just enough hold. But, my favorite part... It smells amazing!

5
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Oh the smell...
Sampled

This product had an overwhelming smell that was just too much for me. It never faded either...which is good if you like the smell. I wasn't wowed by the spray itself. My hair was a little greasy looking on the ends after use.

2
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Works well and helped to hold my curl!
Sampled

I used this product before heat styling my hair with my Sarah Potempa Beachwaver, and not only did it protect from the heat but it helped at a little texture to my fine hair. My curls lasted all day and night!

4
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Works great!
Sampled

I not only used this on my hair but also my kiddos in a pinch. It leaves the hair manageable, soft and smelling wonderful!

4
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