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!
  • 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 clariying shampoo
Sampled

I have used this several times this summer after going a couple of days with product build up and sweating it out at the gym and outside. A little goes a long way and it cleanses so well. I get shiny and soft hair that is smooth. I think the fragrance/scent of this product could be improved a bit.

4
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Smells great!
Sampled

I used this with the sample of hair masque and they seem to work well together. My hair was improving with texture after.

5
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Love!
Sampled

I love this shampoo it has a great smell and keeps my hair clean for days and less oily than others i have used in the passed!

5
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A little goes a long way!
SampledPurchased

What can i say other than I am totally in love with Number 4 Clarifying shampoo! Not only because it smells amazing but also because it leaves my hair super soft! I dont have to use much of the product in order for it to lather on my hair. This is why i decided to purchase the full size product after receiving the sample two in my May box!

5
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AMAZING
Sampled

I absolutely loved this sample! I was able to use it for multiple washes, and was so sad when I ran out. The smell is amazing. It made my hair feel so clean and soft, that I didn't feel the need to use conditioner (and I always use conditioner). I hope to get more products from this brand, and I can't wait to splurge on a regular size bottle of it. I just hope that 8.5 oz can last me a while...

5
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Good
Sampled

While I loved that this product did do exactly what it said it would do. I cannot get past the over powering fragrance. Perhaps a non smelling version I need to find. Thank you for a cool product however.

4
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It's alright
Sampled

Don't love it, but I don't hate it either. The size was perfect to take with me on the plane.

3
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Squeaky Clean
Sampled

I like to use a clarifying shampoo every so often, not daily. I really liked this one. The scent was nice and any product buildup was gone.

4
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Clarifying Shampoo
Sampled

All of the Number 4 products I have had the opportunity to try are great. This shampoo is thick and lathers really well. It smells great and it did a great job getting my hair back to basics and deep cleaning it. Definitely recommend it.

5
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Super great shampoo
SampledPurchased

LOVE this shampoo, after receiving it as a sample I had to actually buy myself some. I use it once a week to help remove extra build up. Smells amazing :-)

5
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