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

Long-lasting
Sampled

I don't shampoo often at all, and I use a clarifying shampoo much less, so my little sample lasted me months. The formula is such that you don't have to use much, the smell is clean, and I've been able to use it without following with conditioner -- apparently, many clarifying shampoos can also be very drying. Well done!

4
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Obsessed!
Sampled

This might be the best shampoo ever i love the smell and how clean my hair feels after. it is really good at removing product build up...

5
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Great brand, good product.
Sampled

I like this shampoo as it seems to moisturize my scalp while still leaving a clean feeling. This shampoo paired with the hair masque is the ideal combination for smooth and shiny hair!

4
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Great scent and soft hair!
Sampled

I loved my sample of this shampoo. It left my hair soft and bright. I especially loved the scent!! This is my far my favorite smelling shampoo I have sampled.

5
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Best Clarifying Shampoo EVAH!!
Sampled

First of all, it does as promised. Second of all it smells FANTASTIC. And last but not least it does all this without leaving your hair feeling all dried up like so many other clarifying shampoos. Love it!

5
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It's....
Sampled

Okay, once again it shampoo and clarifying. I don't really use clarifying shampoos as they tend to dry my hair and I like my current shampoo just fine

3
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N'4 has not let me down yet!!!
Sampled

N'4 clarifying shampoo clears out all of daily residue that builds up in your hair through out the day or week. I'm very picky about my hair care products and again N'4 has yet to let me down. If anything I'm amazed every time I try another of there products! Love love this shampoo! I recommend the entire hair care line and that's rare!

5
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Absolutely love it.
Sampled

I absolutely love this shampoo. I used it about 2 times a week until it was gone. First of all, the smell is lovely-- it reminds me of when I leave the hair salon, with the awesome products they put in your hair. Additionally, with the type of work I do my hair is exposed to some harsh chemicals, and I felt that this did a great job of stripped away the gunk and leaving my hair fresh and soft.

5
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High Performance
Sampled

This is really high performance! I loved the smell and also I loved my my hair was soft not frizzy after I towel dried my hair. I am totally going to buy it after I finish my last bottle of shampoo. I mostly loved it because it was great for colored hair.

5
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Love It
Sampled

The shampoo smells good. Purchased on amazon because the price was way too much on fhe site. It smells good and really set angles

5
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