Editor's TipEditor's Tip

For extra hold, use Number 4 Non-Aerosol Hair Spray after styling.

Number 4 Hair Care

Birchbox Breakdown

News flash: you don’t need to see your stylist to get the sleek, glossy perfection of a salon blowout. To achieve the same results at home, turn to Number 4’s Blow Dry Lotion. Part thermal protector and part leave-in treatment, it’s packed with natural botanicals to keep your strands healthy and smooth. Plus, it has a luxurious scent of citrus and cool marine notes over base notes of musk and amber.

How to Use

Rub a small dollop between your palms and distribute evenly through damp hair. Blow dry and flat iron hair as desired.

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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Most Helpful Customer Reviews

Not good for fine hair

Soooo many silicones! Darn, I really wanted to like this. If you have fine hair like I do, this product will eventually dry it out (unless you do some serious, daily deep conditioning).

1
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This stuff is awesome!
Purchased

I've sampled quite a few hair products from Birchbox. I sampled a spray from Number 4, that I fell in love with, but when I went to order the full size it was out of stock. I decided I'd order a different product from the same line, and I was not disappointed! I wasn't sure what to expect, but I love the way this smells, and it gave my hair a smooth voluminous look! It helps cut down on blow dry time too, which is a big deal for my long, thick hair. The only thing I'm not thrilled about is the texture, I wish it was a thicker consistency. It's kind of thin, which makes it kind of messy, but that's the only reason I gave this less than 5 stars.

4
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This stuff is where it is at for wavy hair
Purchased

I have very wavy hair that gets completely out of control in the summer - the first time I used this product I blew my hair dry and went to a cookout in the new england august heat and humidity and my hair stayed perfect - no lie. Normally it would be wavy again by the time I got from the house to the car - this stuff really works. The texture is a little sticky so make sure you only use what you need on damp hair and then dry right away so your hair doesn't get tacky. I have long hair and one to one and half pumps is more than enough for me. I also have fine hair and it doesn't weigh it down. Almost time for bottle number 2!

4
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bomb.com

What can I say???? Number 4 is my favorite line of hair products. While I think it is far too expensive, when I get number 4 in my sample box, I squeal for joy. After having a child, and 2.5 years later, my hair is WEIRD! Hormones!! Number 4 gives my hair exactly what it needs and this is no exception. My hair is soft, shiny, and manageable with this product. Thank you Number4!!

5
Was this review helpful to you? Yes | No 4 of 4 found this review helpful. Was this review helpful to you? Yes | No
Blow Out
Purchased

I use this everyday. My hair is shiny and frizz free. I am an abuser of the blow dryer. This is an awesome addition to my hair routine. Pleasant scent. NOT fruity! After blowdry the scent is not overpowering at all. My hair looks polished when I use this product.

4
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Nice

I'm not huge on doing my hair but the one thing I do is blow dry my bangs (I have a terrible cowlick) I use the tiniest amount and it keeps my normally fly away crazy bangs smooth, soft, and doesn't weight them down. I have fine hair so almost anything will weight down my hair but this didn't. The smell is also nice, nothing too offensive to the senses. Overall a lovely product.

4
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Love it!

I have really long hair, so the ends get a little bit dry...I like to use this to protect the ends when I blow dry and straighten my hair. Works like a charm! I alos LOVE the smell.

4
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Loveeee!
Purchased

I had heard wonders about this product and was so excited when I finally received it. I am not one to like to spend too too much time on my hair so this product is perfect!! I have long hair and I was able to blow out my hair in 15 minutes! It is such an amazing time saver! It's great at controlling frizz which is my biggest issue! Highly recommend!

5
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Pretty Nice
Purchased

I was super excited to try this product after hearing that it is life changing. However, it has not been life changing to me. My hair typically takes up to 15 minutes to dry and this only cut it down by about 3 minutes to where it takes me about 12 minutes to dry it. I do love all of its added benefits and how my hair looks and feels after. But, the main purpose for me buying it was to see if it would cut my dry time in half and it didn't.

4
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great product
Sampled

I really liked this product even though I have other oils/serums that I use after flat ironing my hair. This was very smooth and smelled great.

4
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