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 works great for my thick curly hair it keeps it tamed and doesn't weigh it down and feels great when I use it. Only dislike is the smell of it. I personally couldn't stand it so I stopped using because it was strong. If it was better smelling I would definitely buy the bigger bottle.

4
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Nutty scent
Sampled

I have used this product a couple of times. I found the scent to have a chocolate nutty aroma. I still haven't decided on whether or not I enjoy the scent. I do like how my hair feels more hydrated after using the straight iron. I would purchase this product if I could remember the name of this product. I would recommend a more stand out name than number 4 super comb prep and protect. It's too long.

4
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Not for me
Sampled

This is a leave in conditioner, but it didn't work for me. I even tried it with different products (shampoo, conditioners) but I didn't like the way it smelled (very chemically) nor that it didn't help me whatsoever with my color or texture. I also have a pixie so maybe it isn't supposed to work for such short hair.

2
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Worked great!
Sampled

While I don't have much use for this product, I used it on my daughters and it made their hair great to brush though when they didn't do the best conditioning job. Anyone who uses a product like this regularly I highly recommend it

4
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Great texture for my hair
Sampled

Gives my hair a great texture, cut down on the frizziness. I expected it to help as a detangler, but it really did nothing there. I really dislike the smell. I prefer the O|I All in One Milk.

3
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Number 4™ Super Comb Prep & Protect
Sampled

Number 4™ Super Comb Prep & Protect. Smells nice. Make my hair soft and shiny!

3
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No Good
Sampled

I did not like the smell, consistency, or effectiveness of this product on my thick and naturally curly hair. Will not be purchasing.

1
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Not my favorite
Sampled

The product made it hard to brush my hair and the brush kept getting stuck. I have a lot of hair so that may be the issue but I prefer products that help smooth and soften rather than make my hair stiff.

2
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Great
Sampled

My hair seems actually really silky after using this. Usually hair products don't do much for me, but I actually did note a difference with this one!!

5
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Bangarang
Sampled

The No.4 hair product is what exactly what I've wanted for years to smooth and style my very thin/fine hair. It manages to tame my fly-aways and give my hair a bit of shine without weighing it down or making it gummy.

5
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