Editor's TipEditor's Tip

After a good towel dry, get a long-lasting hold and finish with Number 4’s Firm Hold Gel.

Number 4 Hair Care

Birchbox Breakdown

At the end of a long day we could all use a fresh start——and the same goes for our hair. When product buildup and styling stress leave strands feeling and looking dull, this clarifying shampoo, subtly scented with white freesia, golden amber, and warm musk, gently cleanses without stripping moisture or color. 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.

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 Men's Bonus Shop

Product Reviews & Sample Feedback

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Most Helpful Customer Reviews

Love the scent
Sampled

This shampoo left my hair feeling super clean. The texture was not runny so it was easy to apply. I really loved the scent of the shampoo

4
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Love that it was color safe
Sampled

I like that it did a good job cleaning my hair while protecting my newly dyed hair color! Smelled good too.

4
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Undecided
Sampled

I neither like or dislike this shampoo. It didn't seem to do anything for me. I have long thick hair and had to use a lot of product to get the tiniest bit of lather.

3
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Ingredient rich clarifying shampoo
Sampled

Love all the ingredients in this shampoo. I like a clarifying shampoo once a week to help reduce build up due to hairspray and other products, so I enjoyed receiving this in my box.

4
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Shampoo
Sampled

I find it hard to find a shampoo that works for my color treated hair and keeping the moisture. This product has done both for me. I would definitely buy a full size product and recommend this to someone.

5
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Perfect when you need a clarifier !
Sampled

This couldn't have come at a better time! I was using a leave in conditioner that ended up leaving a greasy film on my hair. I used No 4 clarifying shampoo and it made my hair feel so much better!

5
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left my hair dry
Sampled

While I understand this is a clarifying shampoo and is meant to strip off the product buildup, it left my hair feeling dry. Especially with the sample size, I was looking forward to putting it in my travel bag, but I probably won't even use it again.

2
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So in love
Sampled

I loved this shampoo!! The scent was amazing and the shampoo is nice and thick. My hair felt so good after using this that I didn't feel the need to use conditioner.

5
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surprisingly nourishing
Sampled

For a clarifying shampoo, I did not feel like my hair was being totally stripped. It does feel clean, but still moisturized. Smells nice too.

4
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Nothing special

This shampoo was very concentrated, as described, but felt sticky going on my hair, and didn't foam up enough to get a good wash. Didn't notice any difference between this product and my normal drugstore shampoo.

3
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