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

Surprisingly good leave in conditioner
Sampled

I initially thought I wouldn't like this, but it is so a light product that it doesn't weigh your hair down. It comes in a spray bottle which is non messy. It leaves hair with no residue and with a pleasant smell. I also like that it protects your hair from the UV rays.

5
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Great for wavy hair
Sampled

This has made my hair so soft, I can't even believe it! I struggle with frizz and this has helped, so much!

5
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Good product
Sampled

It's natural and seems to moisturize like it's supposed to. The smell didn't bother me and seemed to fade pretty fast anyway.

5
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love
Sampled

i love any kind of hair product i am a hairstylist so i jut love trying different kinds of hair product

5
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Wonderful!
SampledPurchased

Originally received this in my monthly box, however, after just s coupe of uses I knew I needed the full size. Works great for my hair. Leaves it soft & silky without weighing it down. I use it everyday now!

5
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Lightweight, adds body
Sampled

I never use leave in conditioner, as I typically do not love the way my hair feels when using it. However, I was positively surprised by this product. I still have to use conditioner, but it's a nice detangler, is lightweight and does not weigh my hair down, and makes my hair feel more voluminous and soft. I do feel like I have to use a lot of it, so I would probably go through a bottle quickly.

4
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Awesome product
Sampled

I used this in my 4 year old daughters hair and her knots magically disappeared and her hair smelled wonderful for days!

5
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Great for tangels
Sampled

My daughter and I both used this for our long hair that can sometimes get those annoying underneath tangles. Works great even on dry hair.

5
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Wonderful Product!
Sampled

I always tease my hair and it's a huge mess when I'm untangling it after the shower. This product works wonders and leaves my hair tangle free and smooth!

5
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Awesome product
Sampled

What a great product!! I am so happy birch box sent this, my hair is so smooth and easy to brush through after the shower, been using it every day

5
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