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: This super-hydrating leave-in treatment. Soy protein works to reconstruct and strengthen hair while natural conditioners like shea butter, jojoba seed oil, and sunflower oil nourish and moisturize—leaving our hair soft, shiny, and in far better shape than it was before.

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 17 of 21 found this review helpful. Was this review helpful to you? Yes | No
great for winter hair
Sampled

Bye bye frizzies. This stuff mde my hair super soft and manageable. Not too soft, just right. A definate for winter.

5
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Great product!
Sampled

Loved the smell and it worked great! Only wish my sample would have been bigger. Works great with the clarifying shampoo.

4
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Don't really like hair masques
Sampled

I have very thick, oily hair. Unfortunately hair masques usually make my hair very greasey. This one did exactly that.

3
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Really Made My Dry Tips Happy!
Sampled

I was very happy with this masque--it made my dry tips soft and much less frizzy. It did seem to weigh my hair down a bit, but otherwise it left everything soft, shiny, and gorgeous!

4
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great
Sampled

I've been trying to grow my hair out and haven't been able to get it cut lately and my hair is also very fine and brittle. After using this masque my hair felt refreshed and soft again.

5
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Works well
Sampled

I thought the sample size was a bit small but after using it I saw that a small amount went a long way. My hair did seem silky and healthier after using this sample.

3
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Super Thick!
Sampled

This product was super thick and hard to work through my long, thick hair. When I finally did get it into a good lather and rinsed, it really left my hair in tangles. I wouldn't purchase this product.

2
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Left my hair feeling soft
Sampled

I have thick, course hair. The product left my hair feeling soft and moisturized. I liked it better than the corresponding shampoo.

4
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It works!

I have an ombré color to my hair so my ends have been recently bleached. I loved using this product! It was just enough for one application because my hair is fairly long but it left my hair so soft and it smelled amazing.

5
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