Editor's TipEditor's Tip

For soft, healthy locks pair with Number 4’s Lumiere d'hiver Reconstructing Masque. The rich conditioner adds a serious dose of moisture to dry strands.

Number 4 Hair Care

Birchbox Breakdown

At the end of a long day we could all use a fresh start——and the same goes for our hair. When product buildup and styling stress leave strands feeling and looking dull, this clarifying shampoo, subtly scented with white freesia, golden amber, and warm musk, gently cleanses without stripping moisture or color. Black currant and soy restore vibrancy, acai berry and vitamin C deliver youth-boosting antioxidants, oolong tea and Irish moss defend against environmental damage, and lemongrass and oatmeal gently cleanse and purify. This shampoo is also vegan-friendly and free from sulfate/sodium chloride and parabens.

How to Use

Squeeze a small amount (a little goes a long way) of the water-activated formula into the palm of your hand and work into a thick lather. Deposit the lather evenly through damp strands and rinse thoroughly. Use daily for best results.

Water, Decyl Glucoside, Disodium Cocoyl Glutamate, PEG-120 Methyl Glucose Dioleate, Fragrance, Polysorbate 20, Sodium Cocoyl Glutamate, Gluconolactone, Polyquaternium-10, Sodium Benzoate, Benzyl Salicylate, Butylphenyl Methylpropional, Linalool, Hydroxyisohexyl 3-Cyclohexene Carboxaldehyde, Helianthus Annuus (Sunflower) Seed Oil, Glycerin, 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

Good quality
Sampled

This shampoo is great. My hair felt and looked great after using this. The shampoo itself feels much thicker than most shampoos, and I didn't feel like I had to use a ton so I will get a few uses out of the sample I received. Plus it smells good!

4
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Love the smell
Sampled

So far I have tried 3 of the number 4 shampoo/conditioners and love them all. This made my hair very soft. It does not lather like typical shampoo and I had to use a little more than normal but its worth it.

5
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Ok

Just ok, I didn't love or hate it. The smell was not my favorite and it felt like I needed to use a lot of it to actually lather.

4
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Love this stuff!
Sampled

I love this shampoo. It takes very little to get the gunk from products out of my hair. I have been using it weekly . I straighten daily and use oils to control frizz and this gets rid of that and eaves hair feeling nice. Goes great with the masque.

5
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Nice shampoo
Sampled

this is a nice shampoo but I didn't notice a huge difference. I didn't find the smell memorable either. Did the job though.

4
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YES
Sampled

Amazing in every way. This brand is now embedded in my mind and I will be adding this to my favorite products :)

5
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Nice
Sampled

It works fairly well on my hair. I have long straight fine hair and it gets dry when I wash too often. Recommended for others with my hair type too.

3
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Wasn't nourishing
Sampled

I have really long hair so even the sample barely got me one wash. I used it with the conditioner and it made my hair dry and frizzy.

3
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Smells good
Sampled

This was thicker than what I was expecting. It wasn't super sudsy/lathering but when rinsed out my hair felt super clean. Nice to add in to my shampoo rotation.

4
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Awesome Stuff
Sampled

My heat damaged hair looked, felt and smelled awesome after using this stuff! I have very fine hair that wasn't weighed down at all. Love it!!

5
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