Editor's TipEditor's Tip

You can use this mild shampoo every day without worrying about drying out strands. For best results, follow with L’eau de Mer Hydrating Condition and use Lumiere d’hiver Reconstructing Masque once a week.

Number 4 Hair Care

Birchbox Breakdown

Whether your hair is over-processed and brittle, or just chronically dry, this is the shampoo for you. The satiny formula is gentle enough to use every day and helps to soften and hydrate strands with natural essential oils and extracts. Free of parabens and sulfates, it foams into a rich lather that leaves hair soft and shiny.

How it Works

L’eau de Mer™ uses vitamin B5 to condition hair and silicone to bump up the gloss factor, plus the brand’s patented Liquid Complexes™. Each of the four complexes is a different blend of natural ingredients, designed to help protect, purify, strengthen, and revitalize hair.

How to Use

The concentrated formula goes a long way. Depending on hair length and thickness, apply one or two pumps of shampoo to your and work into a lather. Work into wet strands and rinse thoroughly and follow with L’eau de Mer Hydrating Condition.

Water, Sodium Cocoyl Isethionate, Sodium Lauryl Sulfoacetate, Cocamidopropyl Hydroxysultaine, Disodium Laureth Sulfosuccinate, Sodium Lauroyl Sarcosinate, Cocamidopropylamine Oxide, Fragrance (Parfum), Divinyldimethicone/Dimethicone Copolymer, Glycereth-26, Glycol Distearate, Gluconolactone, Disodium Cocoyl Glutamate, Lauryl Alcohol, Decyl Glucoside, Quaternium-91, Panthenol, Guar Hydroxypropyltrimonium Chloride, Amodimethicone, PPG-3 Benzyl Ether Myristate, Sodium Benzoate, PEG-120 Methyl Glucose Dioleate, Sodium Cocoyl Glutamate, C11-15 Pareth-7, Trisodium Ethylenediamine Disuccinate, Laureth-9, Glycerin, C12-13 Pareth-23, C12-13 Pareth-3, Polyquaternium-7, Dihydroxypropyl PEG-5 Linoleammonium Chloride, Trideceth-12, Linalool, Helianthus Annuus (Sunflower) Seed Oil, Hydrolyzed Vegetable Protein PG-Propyl Silanetriol, Sodium Ascorbyl Phosphate, Hydrolyzed Soy Protein, Macrocystis Pyrifera Extract, Ribes Grossularia Fruit Extract, Ribes Nigrum (Black Currant) Leaf Extract, Yogurt Extract, Arctium Lappa Root Extract, Avena Sativa (Oat) Kernel Extract, Camellia Sinensis Leaf Extract, Chondrus Crispus (Carrageenan) Extract, Cymbopogon Schoenanthus Extract, Euterpe Oleracea Fruit Extract, Garcinia Mangostana Peel Extract, Hibiscus Sabdariffa Flower Extract, Hydrastis Canadensis (Golden Seal) Root Extract, Ilex Paraguariensis Leaf Extract

More for You!
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Product Reviews & Sample Feedback

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Most Helpful Customer Reviews

Smells lovely
Sampled

Made my hair feels silky smooth , plus the smell is great

4
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Awesome!
Sampled

This shampoo left my hair feeling super soft, hydrated and full!

5
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The scent
Sampled

Pro: If you like the scent, you're in luck...it lasts all day. Con: If you don't like the scent, you're out of luck...it lasts all day, it's stronger than perfume. I did like how my hair felt but the scent was overwhelming.

3
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Great Shampoo
Sampled

So I loved this shampoo, but I hate the way that it smells!!! But I will be buying it because it made my hair look the best it has in months! That has to mean something. I wish they would come out with the same thing with a different scent.

4
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This works great!
Sampled

I love that this shampoo lathers up, yet doesn't strip your hair and actually hydrates and smoothes the strands. Exactly what I needed to treat my dry winter hair!

5
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Favorite
SampledPurchased

I've been getting this every since I received my first sample. I will not use any other shampoo or conditioner. I think my hair is actually growing better and softer, people leave reviews that they wish it would foam up more, but the more it foams up the more build up and soap you have in your hair. This shampoo and conditioner is perfect. I have super thick long hair, naturally wavy/straight. (Crazy hair) works for me!

5
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The smell is my favorite part
Sampled

It makes your hair really silky but don't be surprised if it doesn't lather a ton. A little goes a long way. Not to mention it smells amazing!

4
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AWESOME PRODUCT
Sampled

I cant say enough about this shampoo and conditioner. The smell, the lather and the results. I have color treated hair and this is some of the very best product I have ever tried on my hair. My hair was silky - easy to comb through. The fragrance lasts a long time. LOVE LOVE LOVE NO4.

5
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Awful!
SampledPurchased

Not only did this product dry my hair out, it also burnt my scalp and weeks later I am still trying to get rid of the sensitive feeling that was left over as a result. My hair stylist was able to tell right off the bat that my hair had turned to straw after a few uses of this shampoo and it's just as terrible conditioner. Gentle my foot!

1
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No4
Sampled

I did not like this product because of the smell. The shampoo was not outstanding enough to overcome the smell for me.

2
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