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. 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

Fine leave-in, still had frizz

Worked well for detangling and fast styling but I did have many frizzies after drying. Love this brand though.

4
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shinny hair

This products seems to protect my hair while not weighing it down. It also seems to add a nice shine to my hair.

5
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effective

This product effectively removes tangles and preps hair for blow drying. It left my hair smooth and didn't make it greasy. I'm not into the smell however. I already have a product I got hooked on through birchbox that is similar though so I probably won't be purchasing this.

4
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5 Stars!!

Smells great, light texture but added moisture, shine and volume.

5
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Nice and light

I like how light this product is. Comes out in a very fine mist and doesn't leave hair feeling heavy or greasy at all, which is great. Also smells really good.

4
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Smells like a cookie to me!

This product went on very easily; did not get clogged in the sprayer when I used it which was nice. It smelled like a cookie to me! I instantly felt like my hair was much more smoother and shinier after using. Even 12+ hrs after using it and my hair is dry, it feels very smooth and non greasy. I would consider purchasing this in the future.

3
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Another No 4 Winner

No 4 products are a stellar choice for all hair types, in my opinion, and this one is no different. It smells amazing and makes your hair lightweight, beautiful and manageable. I'm looking for a replacement to my Purology spray and this might just take its place.

4
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Number 4 Comb and Prep Spray Review

The product made my hair much softer/smoother and easier to style. Not too heavy.

4
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Great Leave In

Loved the smell of this product and the way my hair felt when using it. Highly recommend!

5
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Good pre-blowout spray

This spray seemed to protect my hair before blow drying and left it smooth. Also worked well for detangling.

4
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