Number 4™ Fluoro5 Elixer Restore & Repair Oil

There was a time when we were a bit skeptical about hair oils—the last thing we wanted was a greasy, weighed down ’do. These days, however, we can't imagine a haircare routine without it. This strand-saving elixir gives drab, dull hair a coveted movie star shine (plus a whole host of reparative benefits). Our oil-free days are officially over.

Number 4™ Fluoro5 Elixer Restore & Repair Oil
4.2 out of 5 stars, based on 16,795 Reviews 16,795 Reviews
4.2 out of 5 stars
5 Star
7671
4 Star
5976
3 Star
2393
2 Star
531
1 Star
224
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amazing
SampledPurchased

i love this stuff, got it as a sample last March and it lasted forever and i ran out and had to get more and the full size, let me tell you i am going to be good on this for awhile

5
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Shine without the oily look
Sampled

I've used hair oils in the past and while I love the conditioning aspects hate the, well...oiliness. This product seems to be the right balance of adding shine with the greasy look.

I've enjoyed sampling this product!

5
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Number 4 Fluoro5 Elixer
Sampled

Love the fresh scent of this oil free hair repair! It left my hair smelling great and feeling soft!

5
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So silky and soft..
Sampled

I was on vacation with the family and I thought instead of taking all my products that are in bigger container, I should take my samples from Birchbox and give it a try. While on vacation in Florida, with the humidity and not having my regular hair routine, I used this shampoo. I combined this with a beach spray (another Birchbox sample) because I washed my hair the night without any conditioner (purposefully to to test how my hair would react to this shampoo). The spray gave my hair bounce and kept it looking tamed and helped with my wavy hair that day. The following day I used the same shampoo with it's conditioner that came in my box and OMG, my hair was sooo happy. My hair was shiny and silky all night and the next day.

5
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Excellent
Sampled

Love this oil, I have thin, frizzy hair and I put this in before I blow dry and style and it works wonders! Makes my hair look so much more together and healthy!

5
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Nice
Sampled

I feel this product made my hair feel healthier for an extended period of time. My hair is smoothe shiny and soft after using it

5
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A New Go To
Sampled

I love a leave-in conditioning product for my color-treated blonde hair that gets dry and frizzy in the winter, and this was a godsend. It's weightless shine and anti-frizz, and as a blonde I can't afford for anything that will make my hair greasy. This totally fits the bill. A few pumps is enough for your whole head, and I use this whenever my hair needs some shine or moisture. Will definitely be buying the full size when I finish!

5
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Doesn't weigh down my hair at all
Sampled

I have tried a lot of leave in conditioning treatments, and this one is excellent!

I received this sample in my Birchbox and I have to admit I was skeptical, but I love it!

My hair was soft, (not greasy at all) and had a wonderful shine to it.

As a person who has thin hair with color and highlights, I would totally recommend it to everyone, love it!!


5
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Number 4™ Fluoro5 Elixer Restore & Repair Oil
Sampled

I really like this conditioner. It feels very moisturizing and seemed to slightly tame my frizzy hair.

5
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Number 4 restore oil
Sampled

Loved it. Could use it over and over. Great product. Smells great

5
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