Editor's TipEditor's Tip

Keep hair healthy from start to finish with Number 4 Birchbox Exclusive Hair Revival Kit.

Number 4 Hair Care

Birchbox Breakdown

Situation: Your hair is dry and brittle and you’re a few weeks (perhaps a few paychecks) away from a trim. Solution: A super-hydrating leave-in treatment. We’re partial to Number 4’s™ Lumiere d’hiver Reconstructing Masque because it infuses moisture and protein (the two things that hair needs most!) into strands, leaving our hair soft, shiny, and in far better shape than it was before.

How it Works

Soy protein works to reconstruct and strengthen hair while natural conditioners like shea butter, jojoba seed oil, and sunflower oil nourish and moisturize. Don’t forget about the silkiness factor — for that, there’s silicone polymer, which smoothes and detangles.

How to Use

After shampooing, wring excess moisture from hair. Apply evenly to hair starting at the ends and working your way upward to your scalp. Wait for two to five minutes, then rinse thoroughly.

Water, Cetearyl Alcohol, Cyclopentasiloxane, Dicetyldimonium Chloride, Polysorbate 60, Glycereth-26, Behentrimonium Methosulfate, Brassicamidopropyl Dimethylamine, Cetrimonium Chloride, Lactamidopropyl Trimonium Chloride, Cyclohexasiloxane, Fragrance, Divinyldimethicone/Dimethicone Copolymer, Amodimethicone, Cetrimonium Bromide, Jojoba Esters, Methyl Gluceth-20, Panthenol, Behentrimonium Chloride, Dimethiconol, Gluconolactone, Citric Acid, Guar Hydroxypropyltrimonium Chloride, Hydrolyzed Soy Protein, C11-15 Pareth-7, Sodium Benzoate, Butyrospermum Parkii (Shea Butter), PEG-45M, Polyquaternium- 37, Laureth-9, Propylene Glycol Dicaprylate/Dicaprate, Glycerin, Benzyl Salicylate, Hydrogenated Vegetable Oil, Mangifera Indica (Mango) Seed Butter, Butylphenyl Methylpropional, Trideceth-12, C12-13 Pareth-23, C12-13 Pareth-3, Linalool, Hydroxyisohexyl 3-Cyclohexene Carboxaldehyde, Cocos Nucifera (Coconut) Oil, Simmondsia Chinensis (Jojoba) Seed Oil, PPG-1 Trideceth-6, Helianthus Annuus (Sunflower) Seed Oil, Sodium Ascorbyl Phosphate, Macrocystis Pyrifera Extract, Ribes Nigrum (Black Currant) Leaf Extract, Yogurt Extract, Arctium Lappa Root Extract, Camellia Sinensis Leaf Extract, Chondrus Crispus (Carrageenan) Extract, Euterpe Oleracea Fruit Extract, Garcinia Mangostana Peel Extract, Hibiscus Sabdariffa Flower Extract, Ilex Paraguariensis Leaf Extract

More for You!
  • Free returns within 90 days of purchase
  • Extra samples and gifts in the Bonus Shop

Product Reviews & Sample Feedback

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Most Helpful Customer Reviews

Amazingly awesome!!
Sampled

One of the best products I have received thus far during my one yearsubscription to Birchbox! Light weight, non oily, and leaves my hair looking super awesome and feeling soft. Not to mention I do not have a single tangle when it comes time to comb out my hair! A+ for this one!

5
Was this review helpful to you? Yes | No 15 of 19 found this review helpful. Was this review helpful to you? Yes | No
Simply Amazing
Sampled

My hair pretty much has a mind of its own, its long, super thick, course, and hates to be styled. After using this I felt like my hair was silkier, it felt lighter, and it was way more moisturized and much more manageable. The best part is that you hardly need any for this magic to work!

5
Was this review helpful to you? Yes | No 0 of 1 found this review helpful. Was this review helpful to you? Yes | No
N. 4
Sampled

This product is a great product. It does not have a strong/overwhelming smell and it does the job by adding moisture and smoothness to your hair.

4
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Smells good!
Sampled

Product smells awesome and my hair felt great even a few days after I used it. Only wish there were more uses out of the sample. Hard to judge the true effectiveness of a product when you only get to use it once!

5
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smooth and silky hair
Sampled

First of all, the smell is wonderful. This also left my hair feeling super soft and smooth afterwards.

4
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Great smelling
Sampled

Good product but what has stuck with me the most about the product is how great it smelled.

5
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Great!
Sampled

This product made my color treated hair very shiny and smooth. I left the masque in overnight to get the full effect. The packaging was pretty hard to open in the shower, I had to use my teeth :(

4
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Nothing special
Sampled

I didn't really notice a difference in my hair after using this product.

3
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Great product
Sampled

Really enjoyed this leave-in, left my hair feeling soft and protected for days. Great light scent too.

4
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not so good
Sampled

I had really high hopes for this product. While using, I was very pleased - great scent and it coated my hair well. However, I did not see any real results once my hair was dry.

3
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