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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Product Reviews & Sample Feedback

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Most Helpful Customer Reviews

Great Product
Sampled

This product made my hair super soft and easy to comb out the tangles. I also noticed my hair have more shine and the smell is very pleasant.

5
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Worth it!
SampledPurchased

I was sold on this conditioner after one use! I had to go right back and order the full size after receiving the sample in monthly BirchBox. I have been struggling with dry hair recently and this conditioner seems to hydrate just enough without weighing it down. It seems to work magic on my hair making it soft and bouncy with no frizz. My hair looks and feels well-nourished now.

5
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Just okay
Sampled

The product made my hair feel kinda stiff so I am not the biggest fan.

3
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Curly hair
Sampled

Curly hair needs a blow dryer or well, it's just a mess. The constant blow drying is awful for your hair and so this has been a welcome addition to my hair care routine.

4
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Nice product
Sampled

I like this product so far. I normally use something different but am giving this a try. I haven't been using it long enough yet to notice a difference but so far so good

4
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Awesome!!!
Sampled

Did exactly what it said! Made my hair very smooth when it was blow dried and stayed soft and smooth all day.

5
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Excellent product
Sampled

I've struggled with tangled hair my whole life and to come across this product was AMAZING. it smells kinda like "smarties candy" which is always a plus Hahah

5
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Maybe?
Sampled

In the few uses I've had it hasn't totally wowed me yet but I'm excited to keep using it and figure out if its worth purchasing the full size product.

4
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Good product
Sampled

This product works well. I sprayed it on my curly hair when it wet, let it air dry and flat ironed it a few hours hours later and it left my hair smooth and got rid of frizz.

4
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Loved it!
Sampled

I loved this product. I hadn't heard od Number products before getting Birch Box. The smell is fresh and warm and clean. My hair is shiny and silky

5
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