Editor's TipEditor's Tip

This is one area where matching really makes sense. Pair this conditioner with Fleur de Temps Volumizing Shampoo to get the best results.

Number 4 Hair Care

Birchbox Breakdown

Even fine hair needs a good conditioner. This sulfate-free formula detangles and silk-ifies hair without weighing it down. You’ll be left with smooth, manageable hair that is noticeably bouncier. Did we mention it also smells spectacular?

How it Works

There are zero sulfates or parabens in this formula, but there is vitamin B, which helps to fortify and moisturize strands. It also contains the brand’s four signature Liquid Complexes™, which are blends of natural ingredients designed to help protect, purify, strengthen, and revitalize hair.

How to Use

After shampooing, wring out excess water. Apply one or two pumps of conditioner to hair, concentrating on mid-shaft and ends.

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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3.6 out of 5 stars
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2 Star
345
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355
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Most Helpful Customer Reviews

Love this stuff!
Sampled

I had never tried Number 4 products until sampling the volumizing shampoo and conditioner in my Birchbox. I was SO IMPRESSED! This conditioner smells incredible and made my hair soft, silky, and bouncy. I would love to purchase in the future (it's way too pricey for me) once I save up some Birchbox points.

5
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Decent
Sampled

I tried it alongside the shampoo. As with the shampoo the scent is a bit musky, not too sure I enjoy that in my hair care. Overall it conditioned well and left my hair feeling nice but it didn't blow other products out of the water.

2
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Really does pump up the volume
Sampled

I used this along with the volume shampoo. And I was actually amazed that it really does lift your roots and leaves the hair super clean. The only problem I have with the product is the price. I can't see myself spending this much money just to get a little extra volume. All in all, it does work, so it's up to you.

4
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Smells great
Sampled

Made my hair very soft. Smells great. Wish the sample would've been bigger, I only got one use out of it.

3
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Great Conditioner!
Sampled

A very nice conditioner that didn't weigh my hair down. This combined with its matching shampoo did great things for my hair!

4
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Decent
Sampled

The conditioner smelled very nice but it did not do as much as I would have liked it to do with hydrating my hair.

2
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ehhh okay
Sampled

This conditioner smells great but thats about all it has going for it. I have long thick hair so I had to use a lot of the product and it still didn't do much. I had to eventually use another conditioner because this one is so thin.

3
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feels and smells great

I received a sampole of this and had to purchase the next day, it feels and smells wonderful and made my hair feel soooo healthy

5
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Not too heavy for oily hair
SampledPurchased

Usually conditions weigh down my hair and make it oily, it is awesome to find a product that doesn't do that!

5
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Not as great as the shampoo.
Sampled

While I loved the sample of the corresponding shampoo, I found that there wasn't a ton of conditioner in this sample. While the packet said that it was highly concentrated so that you wouldn't need as much, it didn't lather at all, so I felt that I was barely covering my ends with the conditioner, and my hair is fairly short. While I did notice that my hair was shiny and silky at the end, I'd rather keep my leave-in conditioner!

3
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