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!
  • 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

257 Reviews
4.2 out of 5 stars
5 Star
284
4 Star
254
3 Star
127
2 Star
32
1 Star
23
Hair type
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Normal
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Age
17 & under
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35-44
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Most Helpful Customer Reviews

Moisturizes and Repairs!

I used this right after I used the clarifying shampoo. After leaving it on for about 3 mins, my hair felt so healthy!

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Great for silky smooth hair

This masque is amazing and leaves hair so manageable and smooth. I love this for my untamable hair. I have thick, course, long blonde hair that has been chemically treated too many times and needs extra love.

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it was okay
Sampled

it hydrated my hair but i wouldnt pay that much for it. my hair was still frizzy after. also sample size was only enough for the ends of my hair

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The conditioner works well
Sampled

The masque was nourishing and kept my hair soft for days. Want a fan of the shampoo but loving the conditioner.

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Good Product
Sampled

I recently tried this product and it is great. My hair has recently been dry and so I decided to give this product a try. I saw a difference in my hair texture after one use. I don't have extremely dry or damaged hair but if your looking for a good masque then I recommend trying this one.

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Nice product

This is a very nice product and seems to work pretty well but I am not sure that it is worth the price!

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just ok.
Sampled

ive never tried a a mask before so i was excited to try this and it was ok nothing special it did make my hair feel a little softer but overall nothing that made me jump up and buy it specially that its 60 dollars...with the sample i got maybe ill get 2 or 3 uses of it...

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Hmm
Sampled

I'm not really interested in hair masques but was interested in trying it. It works well I just dont think something like this is for me.

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Smooth
Sampled

This was great and it made my skin very smooth and soft.

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LOVE
Sampled

Love the smell! It tames the frizz in my thick wavy hair. perfect for days when I want to just go air dry!

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