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—the same goes for our hair. When product buildup and styling stress leave your locks feeling dull, use Number 4 Clarifying Shampoo, subtly scented with white freesia, golden amber, and warm musk, to gently cleanse without stripping moisture or color.

How it Works

Rich in vitamins and antioxidants, this clarifying shampoo restores health and shine to overworked tresses. 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!
  • 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

I love it
Sampled

This shampoo is different than any other I've used. My hair has never felt so squeaky clean!

5
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Fantastic for clarifying
Sampled

By far the best clarifying shampoo I've ever used. All build up disappeared without it stripping any moisture at all. Love it!

4
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Terrible Shampoo
Sampled

I found this shampoo did the opposite of clarify my hair, even using very little of this high concentrated shampoo...and washing and re-washing...the residue left was as if I put in a heavy cream - gross. Greasy all day, I used it a second time to make sure I didn't use too much, but no this was a product I am throwing away and would not recommend.

1
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Awesome for dry scalp
SampledPurchased

Got this as a sample and ordered it after using it all up. I have really thick hair and my scalp tends to be flaky, especially during the winter. A little of this goes a long way and it smells great. Its the most effective thing I've found against flakes and still nourishes the rest of my hair! So happy!

5
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Nice scent and good shampoo
Sampled

Overall a nice mild but effective shampoo. It has a nice scent that isn't too overpowering and lingers slightly after use.

4
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Meh
Sampled

I wasn't super impressed with this product, it left my hair feeling heavier.

2
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Great shampoo
Sampled

Great shampoo! Leaves the hair clean and smelling nice.

5
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Beautifully cleaned
Sampled

I absolutely love this clarifying shampoo. It cleaned my hair and left it soft and shiny. It doesn't take much and I use it about twice a week. Great product I highly recommend.

5
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Love this product
SampledPurchased

I loved the sample so much I ended up purchasing the product. I've been using this product now 2 months and I love how my hair feels, smells and how healthy it has gotten since using this product.

5
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Good not great
Sampled

It is a nice shampoo, nice light scent. I needed only a small amount of product which was great because it was a small sample. I was sori of expecting miracle with the price, but it was good none the less

4
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