Editor's TipEditor's Tip

For ultra-healthy locks, apply Super Comb Prep & Protect after deep conditioning with Number 4 Lumiere d'hiver Reconstructing Masque.

Number 4 Hair Care

Birchbox Breakdown

As self-confessed blow dryer addicts, we put our hair through a lot of stress. To keep our strands from a styling-induced meltdown, we’ve been using this extra hydrating leave-in conditioning mist. It doesn’t just protect hair from heat damage; it also doubles as a color protector and UV shield. The sulfate-free formula sinks in quickly and has a pretty floral scent thanks to white freesia, amber, and musk.

How it Works

Natural conditioners—including black currant, soy yogurt, algae, and yerba mate—combine to restore hydration to dry hair, while the unique UV/Color Polar Shield protects dyed or sun-exposed locks. Soy and vegetable proteins repair damage caused by heat and chemical styling. And don’t forget about the defrizzing factor—anti-static technology tames flyaways, making hair more manageable and easy to style.

How to Use

After shampooing, wring excess moisture from hair and towel dry. Holding the spray bottle upright, spritz product evenly. Using a wide-toothed comb or your fingers, gently work the product through hair from root to tip. Style as usual.

eau/water, amodimethicone, peg-40 hydrogenated castor oil, cetrimonium chloride, glucose, panthenol, parfum/fragrance, cetrimonium carboxydecyl peg-8 dimethicone, sodium pca, citric acid, cinnamidopropyltrimonium chloride, trideceth-12, magnesium sulfate, hydroxyethylcellulose, trisodium ethylenediamine disuccinate, hydrolyzed soy protein, hydrolyzed vegetable protein pg-propyl silanetriol, glycerin, sodium ascorbyl phosphate, lactoperoxidase, glucose oxidase, macrocystis pyrifera extract, ribes grossularia fruit extract, ribes nigrum (black currant) leaf extract, chondrus crispus (carrageenan) extract, euterpe oleracea fruit extract, garcinia mangostana peel extract, helianthus annuus (sunflower) seed oil*, arctium lappa root extract*, avena sativa (oat) kernel extract*, camellia sinensis leaf extract, cymbopogon schoenanthus extract, hibiscus sabdariffa flower extract*, hydrastis canadensis (golden seal) root extract*, ilex paraguariensis leaf extract*
*certified organic by QCS

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Most Helpful Customer Reviews

Great

This was an amzing product. I have really straight hair so it looks greasy easily. but this product moisturizes without making my hair greasy.

5
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Love

This is another leave in treatment and I wasn't sure,,it smelled wonderful so that was a great start! Then when I used it I was very happy with it and I love it. It was so worth the money I will be spending on it. It feels light on my hair and soaked into the strands and I have very thick hair.

5
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IN LOVE

In the grand tradition of Birchbox haircare samples, I love this product. Birchbox has sent me nothing but stellar hair products and this is another one I'll wind up purchasing once my sample runs out! This prep spray is light, residue-free and leaves my hair feeling soft and silky. The smell is great, but doesn't overpower my shampoo or perfume. I have wavy hair, and use it in conjunction with Hayadi Pure Happy Smooth (another Birchbox find) and a sea salt spray, and my waves look defined and beautiful, even on days when I skip the blowdryer. So glad I was sent this product!

5
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I liked it

I really liked it, but I probably won't purchase the full size. i use a similar product that I absolutely love, but this was still a great product and I would recommend

4
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Healthy hair

My hair does feel healthier and better protected after using this product. Even after blow drying, my hair feels moisturized and healthy.

4
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Want more

I really like this brands other products they are high quality and make my hair feel soft and clean I enjoyed using this product! The sample I received was a good size to show if I liked it or not. Which I did I got a good number of uses out of it. The price is great for the size and quality. I like it a lot and recommend it to anyone who wants protected moisturized soft hair.

4
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Moisturizing Spray

This was a nice spray with a pleasant scent and that made my hair feel soft and detangled.

4
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Smells bad

I really appreciate a good leave in conditioner type product such as this one, it works well and I was impressed with it. The only draw back, which is a deal breaker for me, is the smell. Hated the way it smelled.

4
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Ok, not great

I like this product but it doesn't seem better than other things that I've tried. I prefer something that gives my hair a little more shine

3
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Great to bring to the beach

Used this after a swim in the ocean, worked wonders as a detangeler and left my hair smelling and feeling great.

5
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