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.

Liquid VibranceTM Complex (Black Currant, Soy Yogurt, Algae, Yerba Mate), Liquid VitalityTM Complex (Acai Berry, Hibiscus, Mangosteen, Vitamin C), Liquid DefenseTM Complex (Burdock Root, Oolong Tea, Irish Moss, Vegetable Protein), Liquid PurityTM Complex (Lemongrass, Gooseberry, Organic Oatmeal, Golden Seal)

More for You!
  • Product orders $50+ and all monthly box brands ship free
  • 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

Great scent, works well.

This clarify shampoo leaves your hair feeling clean and refreshed. The scent is wonderful as well. I would recommend this product.

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Great smell and cleanses well
Sampled

I really liked using this shampoo. It left my hair feeling clarified.

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Icky
Sampled

This product was way too concentrated for me. I could barely run it through my hair.

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great product
Sampled

loved the sample, cant wait to get this shampoo, great product

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Colleen
Sampled

Love the smell of this shampoo! Felt like it really cleanse my hair and didn't leave it striped.

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Uggg
Sampled

I am so sick of getting shampoo in every box. I don't want it and I can't use it on my hair.

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Great clarifying
Sampled

This shampoo does as promised & clarifies the hair, removing product build up. It was somewhat difficult to work through my hair, but had a nice lather once I managed it.

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Smells Good
Sampled

I have become away of Number 4 products through Birchbox samples. I also have a small hair spray sample I use occasionally on my 3 year olds fine hair when we pull it up in ponytails or pigtails. This came at a a perfect time for me, tw weather is getting warmer and I practice Bikram Yoga so I needed something to deep clean my hair and it did. I also received the conditioning masque and it was a lovely treat for my hair.

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Wonderful Cleansing Shampoo
Sampled

I really enjoyed using this product since it cleansed and made my hair feel great. It is a bit thick so it took as bit to get out.

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Eh...
Sampled

I felt that this product took two washes for it to fully take effect. The lather was lovely.

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