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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 16,931 Reviews 16,931 Reviews
4.2 out of 5 stars
5 Star
7742
4 Star
6021
3 Star
2407
2 Star
536
1 Star
225
my profile
people who
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sampled
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Age
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Greasy mess!
Sampled

My hair gets oily fast naturally, but this product just sped up the process. Felt nice for about 5 minutes, then I looked like a greasy mess.

1
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I hate Number 4 Hair care...
Sampled

I really really really hate this brand!!! I wish birch box would stop putting this brand in my sample box!! Take a hint already!! Even though i hate this brand, i tried this product anyway. It did not do anything it promised and of course i hated the smell...

1
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Not a fan
Sampled

Not in the cards for me. It was too heavy for my hair, I did however use it for my cuticles

1
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Made my hair greasy
Sampled

Even while using a small amount of product, my hair became greasy.

1
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Too greasy!
Sampled

This oil left my hair way too greasy. I tried it twice to give it a chance but I tossed the rest of the sample out.

1
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Ingredients are kind of icky
Sampled

I wanted to love this product. I love the idea of something the add extra moisture to my ends, but the ingredients make it unusable for me. Dimethicone messed up my hair badly. I wish more brands would go silicone-free

1
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Heavy and greasy
Sampled

I normally love Number 4 products but this was a huge miss for me. It left my hair weighted down and greasy looking. I thought it was a fluke after the first time I used it...like I used to much...so I tried again with less product and still got the same results. Needless to say this product is a miss.

1
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ehh....
Sampled

its not the best product i have ever gotten , i dont feel like it did anything but then again my hair type is very "unique"

1
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not for me
Sampled

weighed my hair down and made it dull and oily looking. oh and felt oily and greasy after awhile. wanted to just go home and wash my hair

1
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No need for ANOTHER hair oil!
Sampled

And.... ANOTHER ONE! Geez BB! Why keep sending us hair oils? Especially when our profiles show we don't NEED, much less WANT them?! Another one tossed in trash can.

1
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