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

More for You!
  • Product orders $50+ and all monthly box brands ship free
  • Free returns within 90 days of purchase
  • Extra samples and gifts in the Bonus Shop

Product Reviews & Sample Feedback

4.0 out of 5 stars, based on 7,464 reviews 7,464 Reviews
4.0 out of 5 stars
5 Star
3047
4 Star
2498
3 Star
1266
2 Star
418
1 Star
235
Hair type
Curly
Dry
Fine
Frizzy
Kinky
Normal
Oily
Straight
Thick
Wavy
Hair color
Brown
Blonde
Black
White or gray
Red
Other
Age
17 & under
18-24
25-34
35-44
45-54
55 & over
Apply

Most Helpful Customer Reviews

Great leave-in conditioner

This is one of the first samples I received and bought it immediately from Birchbox. I used my sample to travel with and bought a full size for my house. Great before using hot elements on the hair.

Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No
not sure that it's worth the price

It's a good product. I have used many others that do the same thing but smell better and are a more reasonable price.

Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No
I loved this!

I have fine thin long hair - a lot of it which means I am prone to tangles & breakage. I loved this product because it did not weigh my hair down. I used this along with a conditioner but on my ends only! Highly recommend!

Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No
frizz-be-gone

This product has helped with reducing frizz for me. The scent is off-putting as others have said, but not bad--just not appealing.

Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No
Amazing

So I have color treated ombre hair... As much as I like to think my hair is beautiful, the color treated part can be pretty dry... This prep and protect was AMAZING! It's easy to comb through hair, and it left my ends feeling silky smooth... Even after straightening and curling... So that is definitely a plus in my book!

Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No
Excellent conditioner
Purchased

This is an excellent leave in conditioner for over stressed hair, if there is one product you should try it would be this one, it does not weigh your hair down or make it feel sticky and is amazing

Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No
Sticky, drying, and synthetic smell

I'm sure this would be great for those who want to use it solely as a heat protectant, but on its own misted over damp hair it made my hair feel sticky and brittle once it dried. Although, typically I use oil on my hair after I shower, so in contrast this would be much lighter. I did not enjoy the smell at all.

Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No
Ok

Not my most favorite leave in conditioner, but it does the job. I'm not a huge fan of the smell.

Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No
LOVE THIS
Purchased

SO great! Just wish it was less expensive! This product really works, makes my blow out salon ready. LOVE the smell!

Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No
I love this product
Purchased

For fabulous reasons this product help my hair to be more healthy and strong. It also save me a lot of time trying to get my desire look. I just love it! Oh, it also smell so good.

Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No