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 2,061 Reviews 2,061 Reviews Write a Review
  • $30.00 includes Free Shipping
  • 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

2,061 Reviews
3.9 out of 5 stars
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657
4 Star
792
3 Star
432
2 Star
134
1 Star
46
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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 3 of 3 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
Was this review helpful to you? Yes | No 4 of 4 found this review helpful. Was this review helpful to you? Yes | No
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
Was this review helpful to you? Yes | No 4 of 4 found this review helpful. Was this review helpful to you? Yes | No
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
Was this review helpful to you? Yes | No 6 of 7 found this review helpful. Was this review helpful to you? Yes | No
Great product!
Sampled

Works well and made my hair feel soft and silky. Will definitely continue to use this product when using a curling iron.

5
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Protected Me From Frizz
Sampled

Usually my hair is super frizzy, especially in the summer, but after I put some of the styling spray on it my hair basically stayed sleek and smooth.

4
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Great for my heat damaged hair
Sampled

I'm a person that is constantly using a flat iron to either curl or straighten my hair. This product felt like it was working its magic after the first time I used it. I was very happy with his product.

4
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Not worth it
Sampled

Stiff hair, sticky not good, won't purchase this, very expensive yet inefficient styling product. Many others are better at this job

2
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fine
Sampled

i have a buzzcut so i could not use this product. it looks like it probably works well. i did not wsmell it

3
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Great Product
Sampled

Love the product! Great scent, great product. My thin, brittle hair feels great after using this spray (before using the flat iron!). Would definitely recommend.

5
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