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

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Most Helpful Customer Reviews

An Okay Product.

I like the fact that this shampoo is organic and super concentrated. A little goes a long way. I will say though, with my mother being a hair dresser, shampoos and conditioners usually cease to impress me because I'm a die-hard fan of some other professional products. This isn't a bad shampoo. If you feel strongly about using something very natural, this could be for you. I wasn't overly impressed by the clarifying but it wasn't bad!

3
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Number 4 Clarifying Shampoo

I reviewed the Number 4 Reconstructing masque, and I had nothing but praises to lob at it. I would simply be repeating myself at this point. But, I'm going to anyways because I love this stuff. I have dry, color treated hair. So, I know my hair products. The smell is soft and subtle. Application was what you would expect from a sulfate free shampoo. You don't need bubbles, to know that a shampoo is working. My hair was soft and shiny and cleeeean! I have bangs and I stagger my hair cleaning routine with every other day just washing my bangs. I used this product for that purpose and it was amazing.

5
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Really works
Sampled

This shampoo smells great, really cleans residue from hair and you don't have to use much but my hair is naturally dry and I only wash my hair about once every five days with limited hair product buildup so I didn't find this product worth the price for me

4
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This is a very rich shampoo

This was a very good, rich shampoo, and I really enjoyed using the sample I received. It also has a very good scent, and the sample contained quite a few uses.

5
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It's not just clarifying
Sampled

I used to work receptionist at salons n spas and when I hear clarifying, it means to strip off gunk and the moisture from the hair. I didn't try this for the longest time in fear that I would strip off my hair. But when I did, it made my hair clean from products and not stripped of its nutrients. I would call this Clean and replenish or Rewind, or something like that... Not clarifying. Great shampoo!

5
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Great!

This shampoo clears the residue of about 1000 products out of my hair without making it feel dry. It smells great, and a little truly does go along way. I have lower back length with moderate thickness and I use about a quarter and just take the time to work it through my whole head.

5
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Pretty hair day

I was looking for a shampoo that would make my hair feel light weight and shiny and this shampoo did just that! My hair is colored and fine and it made the color vibrant and added flowy volume!

5
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Great shampoo!

The texture, lather and smell were great! I have extremely long hair and I liked that it didn't nearly as much shampoo to cover all of my hair. If the price wasn't ridiculous, I would consider purchasing!

4
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Love it!

I noticed a difference in my hair the first time I used this. The consistency and smell are awesome, and the overall quality of the shampoo is amazing!

4
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makes hair soft!

I really liked the shampoo, my hair felt very clean and was so soft after using it, and it smells so good! But honestly, I can't see myself spending that much money on shampoo.

5
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