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

Product Reviews & Sample Feedback

1,904 Reviews
4.0 out of 5 stars
5 Star
695
4 Star
710
3 Star
361
2 Star
85
1 Star
53
my profile
people who
purchased
sampled
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 Shampoo
Sampled

I love the smell of this shampoo! It leaves my hair feeling silky smooth without any greasy texture or residue. I used with the Number 4 Conditioner for the complete experience. I will definitely purchase this product in the future.

5
Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No
Great product!
Sampled

I have really dry hair and this shampoo left it feeling hydrated all day! I enjoy the scent, which is not overbearing.

5
Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No
Luxurious smell!
Sampled

I absolutely love the smell of this shampoo! The only way I can describe it is it makes my hair smell like the Ritz Carlton.
I gave it 3 stars because, although I loved the smell, I didn't see it make any difference with my hair. It actually seemed to dry it out a little.
But, I'm excited to get the body lotion so I can smell like this all day!!

3
Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No
My new fav shampoo
SampledPurchased

I got the sample on my June's box and I already bought the full size this shampoo is amazing I have thin straight colored hair and works great for me.

5
Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No
N4 Hair Products Rock
Sampled

The N4 Hydrating Shampoo lathers like a dream, easily rinses clean, and keeps your hair smelling wonderful for over a day.

4
Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No
Awesome
Sampled

This stuff is great, feel extra refreshed in the morning after using it! I will be purchasing this once my sample is finished. I prefer this to the standard run of the mill shampoo you get at convenience stores.

5
Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No
It's shampoo
Sampled

It smells good. It worked good. It did it's job! It's hydrating but I'm sticking to my other brand, it's cheaper.

5
Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No
loved it
Sampled

The smell of the shampoo is amazing and I noticed a change in only the first wash. It was silky and manageable with that first wash unlike any shampoo I've used before.

4
Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No
Nice smells good
Sampled

It's nice, feel luxurious and my hair seemed ok. The sample wasn't really big enough to get a good read on it.

3
Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No
Amazing Shampoo
Sampled

This shampoo came in one of my boxes and the sample now has me addicted. The smell alone is a reason to purchase. It also doesn't leave your hair feeling heavy at all.

4
Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No