Editor's TipEditor's Tip

After styling, set hair with Number 4 Non Aerosol Hair Spray for natural hold and shine.

Number 4 Hair Care

  • 3.9 out of 5 stars, based on 2,111 Reviews 2,111 Reviews Write a Review
  • $30.00
  • 150ml   
  • Availability: In stock

    $30.00

Birchbox Breakdown

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.

How to Use

Separate dry hair into small sections and spray each section evenly before using curling irons, flat irons, or hot rollers.

Water, VP/VA Copolymer, Isoceteth-20, Chlorphenesin, Fragrance, PEG/PPG-18/18 Dimethicone, PEG-12 Dimethicone, Silicone Quaternium-8, Polyquaternium-11, Disodium EDTA, Cinnamidopropyltrimonium Chloride, Limonene, Hydrolyzed Jojoba Protein, Hydrolyzed Vegetable Protein PG-Propyl Silanetriol, Cocodimonium Hydroxypropyl Hydrolyzed Rice Protein, Hydrolyzed Soy Protein, Butylphenyl Methylpropional, Aminomethyl Propanol, Methylisothiazolinone, Linalool, Helianthus Annuus (Sunflower) Seed Oil, Alpha-Isomethyl Ionone, Citral, Hydroxyisohexyl 3-Cyclohexene Carboxaldehyde, Glycerin, Coumarin, Evernia Furfuracea (Treemoss) Extract, Sodium Ascorbyl Phosphate, Macrocystis Pyrifera Extract, Ribes Nigrum (Black Currant) Leaf Extract, Yogurt Extract, Arctium Lappa Root Extract, Camellia Sinensis Leaf Extract, Chondrus Crispus (Carrageenan) Extract, Euterpe Oleracea Fruit Extract, Garcinia Mangostana Peel Extract, Hibiscus Sabdariffa Flower Extract, Ilex Paraguariensis Leaf Extract

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Product Reviews & Sample Feedback

2,111 Reviews
3.9 out of 5 stars
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677
4 Star
816
3 Star
449
2 Star
136
1 Star
52
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Most Helpful Customer Reviews

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
Was this review helpful to you? Yes | No 4 of 4 found this review helpful. Was this review helpful to you? Yes | No
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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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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It does not work for me
Sampled

I Applied as instructed it gave me more frizz
it didn't really work for me to its purpose
but it smells is really nice!

1
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Good product, poor bottle

I love this line, and I was excited to try this product. The product itself is a good, smoothing protectant. I liked how my hair felt after using it. However. The application wasn't great. It seems the nozzle could be designed better to suit the product and its users.

5
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ok
Sampled

ok product, didnt really get results, wish i was sent something else instead of this... dont enjoy this brand too much, sorry

3
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Love it!

This product smells so good! I use it before I know I will use a flat iron.. Great product!

5
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N4

I really liked this product. I tried to purchase the full size, but it was out of stock. I guess everyone liked it!

5
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Styling Spray
Sampled

I normally don't use heat to style my hair, so I haven't tried this product yet. I am excited to try it out though!

3
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