Editor's TipEditor's Tip

Want to wash away product build-up at the end of the day? Try Number 4’s gentle Clarifying Shampoo.

Number 4 Hair Care

Birchbox Breakdown

If you’re cruising the coastline in a convertible or trekking to work through wind and sleet, you want a hair product with a strong hold over something light and pliable. This firm formula gets the job done without being sticky or flakey. While the sleek bottle adds instant style to your sink ledge, the aromatic blend of tonka beans, amber patchouli and Spanish moss is equal parts alluring and masculine.

How it Works

The sulfate- and paraben-free formula utilizes the brand’s signature Liquid Complexes, plus frizz-resistant technology and a UV color protection shield. Vitamin B5 prevents greying and hair loss, while an extra boost of conditioner repairs damaged hair and keeps flyaways at bay.

How to Use

Squeeze out a dime-sized dollop into your hands. Apply to clean, damp hair and style as desired.

Vitamin B5, 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!
  • Product orders $50+ and all monthly box brands ship free
  • Free returns within 90 days of purchase
  • Extra samples and gifts in the Men's Bonus Shop

Product Reviews & Sample Feedback

42 Reviews
3.7 out of 5 stars
5 Star
17
4 Star
8
3 Star
10
2 Star
3
1 Star
4
Hair type
Curly/wavy
Long
Straight
Afro-textured
Age
17 & under
18-24
25-34
35-44
45-54
55 & over
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Most Helpful Customer Reviews

Fantastic!

Without a doubt this is one of the best volumizers I have ever used. It provides great volume and hold. Not sticky and does not make my hair stiff. My hair has never looked better! I can't say enough good things about this product. Birchbox never sends me good stuff in my subscription box so I'm happy I received a sample as a pick two extra.

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Good hold

I really liked the way this held my hair. Was not greasy or clumpy and applied very easily. I really like this product and would use on a daily basis.

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Best hair gel EVER!
Purchased

I use this hair gel daily. I have tried many brands, but this is one hair gel that actually holds the curl ALL day. I love it. Applied to wet hair seems to work the best for me. It is not sticky or flakily at all. Love it!

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MAGIC!

I have fairly thin but curly hair that is a bit willful so when I found a product like this that makes it mind, it's become mine! I LOVE, LOVE, LOVE this product and will continue to use it from now on. I can't wait to order an extra of this product for the 30% off third year special! Thank you BirchBox!

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GREAT gel for riding in a convertible!
Purchased

I am totally in love with this hair gel. It definitely holds my hair in place all day and that is perfect for me. Even though I have short hair this product stands up to hanging out friends without my hair losing its style. Love! Love! Love!

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wow, great gel!
Purchased

i was super impressed w/ this gel. I got it in a sample 2-pack that i really just picked to get the other product, so i threw it in my travel bag for the next time i wanted to go au natural with hair on a trip. i ended up being in atlanta during a really rainy weekend, so i couldnt straighten and pulled out this stuff. it worked great! it's a little crunchy, but all gels are, and wow it really holds the curls well. i slept on it overnight and the curls still looked nice. plus it doesnt LOOK wet and crunchy and that's what matters! i will definitely buy this!

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Keeps my hair style in place and shiny

Number 4 Firm Hold Hair Gel helps my hair to stay in its style overnight, and keeps it shiny. It is not sticky or too firm, but still holds my hair in its place. Its fragrance is very pleasant.

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too stiff

great product for those looking for stiff hair. Its glue-like strength is capable of extreme hold. however, not what i desire.

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He likes it!!

I'm a product-aholic! I got this as a sample with purchase and had my husband try it- He really liked it (to his chagrin). We will surely be buying a full size soon!

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Best product for my hair by far!

This is the first product I've ordered immediately after receiving it in my birtchbox. The smell is a little strong at first, but I quickly became accustomed to it. I have blonde color treated hair that has become more fine than thick over the years. This product left my hair so soft and manageable even after the first usage and helped tame the frizz from NC humidity. Love this stuff!!

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