Editor's TipEditor's Tip

Post lather, spritz strands with a leave-in conditioner like Number 4 Super Comb Prep & Protect.

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 one pump (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

254 Reviews
3.9 out of 5 stars
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46
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1 Star
9
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Most Helpful Customer Reviews

This bad boy is super concentrated

A little goes a long way. THis shampoo is super concentrated and I like it. Makes me feel as if I'm really washing all of the gunk out of my hair.

4
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Shampoo

This shampoo smells really nice and my hair felt clean but not over-dried as you get with some shampoos. I would definitely purchase if it were priced more in line with high-end drug store brands.

4
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SO Good

Paired with the mask, it is amazing. Not paired with the mask and just paired with your average conditioner, still amazing. My hair has never looked better!

5
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LOVED IT!

Left my hair feeling soft but not limp! Smelled great and just didnt leave the build up that regular shampoo does. The ony real downfall is the price. I was ready to buy a bottle but cant see spending that kind on money on a 25 oz bottle.

4
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Number 4 Clarifying Shampoo

This is a great shampoo for me because I use a lot of product in my hair. My hair feels great after using it but it is pretty expensive.

5
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March Birchbox

Received this in my March box and I feel in love with the scent. I was happy to hear that you can use it as a body wash as well. Great product; left my hair smelling great and looking shiny and bouncy.

4
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Noticeable difference after one wash

Once I accepted there was going to be low lather I massaged the shampoo through my scalp. I added the no 4 intense mask after. My hair was noticeably cleaner, but not limp, even had volume. The mask made hair easy to manage but my hair overall was clarified, nothing weighing it down. I recommend trying it.

4
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Number 4 Clarifying shampoo will clarify

This shampoo is supr concentrated. It has the feel of dish liquid. You only need a drop. Having said that, it doesn't lather much and I really do like lather. It did feel clean though. Having color treated hair, a clarifying shampoo scares me a little bit. I'm doing everything I can to keep from stripping anything out of it. Therefore, I would be unlikely to purchase.

3
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Good Cleansing Shampoo
Sampled

I ended up taking this product with me on a trip to Europe due to its convenient size, and convenient timing of delivery. I don't typically struggle with greasy or oily hair, but for some reason, when I'm travelling, I often have to make sure I do a good job of shampooing my hair at nights, or it does get to be a bit greasy. This product worked really great to cleanse my hair and keep it fresh. The scent is a bit odd, but the product worked as expected to I would definitely recommend it for anyone who needs a good cleansing shampoo.

4
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Okay

I don't think this product is anything special, it just seemed like a normal shampoo for me.

4
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