Editor's TipEditor's Tip

Treat damaged strands with Keratherapy’s Keratin Infused Moisture Shampoo and Conditioner.

Keratherapy

Birchbox Breakdown

Frequent frizz fighters, meet Keratherapy. In addition to its cult-favorite keratin-based products, the Miami hair care brand also offers key tools—like this nanotechnology-powered curling brush, which turns unruly curls into sleek, shiny locks. Think of it as your strand-smoothing secret weapon.

How it Works

Negative ions work to smooth damaged cuticles, while heat indicating bands let you know when the brush is at the optimum hair-styling heat. The brush’s square shape and non-slip rubber grip make the styling process a cinch. And the pick at the end can be used to section your hair into parts.

How to Use

Use this brush-and-hair-dryer combo to finish your look, whether you want to go wavy or stick straight.

More for You!
  • Free returns within 90 days of purchase
  • Extra samples and gifts in the Bonus Shop

Product Reviews & Sample Feedback

5 Reviews
2.8 out of 5 stars
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Most Helpful Customer Reviews

Not what I thought
Purchased

I tried on several occasions to use, but I think the square design and my bob hairstyle don't mix. When I purchased it I thought it was round.

2
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Meh
Purchased

It's a basic straightening brush. Reading the description made me think that it had it's own heat element... it does not without the help of a blow dryer.

1
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Breaks hair!
Purchased

The bristles and shape of the brush are great. And, I do like the grippy handle with the extra piece tucked in the end. When styling my hair, it did make it smooth and shiny.

However, my hair gets EATEN UP where the brush meets the handle, causing it to break. I've got short clumps in my hair now, from it getting caught in the small gap in the brush. I'll be replacing it immediately.

1
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Very nice
Purchased

This a great styling brush my hair is curly and it goes thru it nicely. I would buy the bigger sizes next time for my sisters hair bcuz its longer

5
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Best brush
Purchased

I needed a new round brush and had some points to use from birchbox. This brush was so much better than I expected. I have frizzy/wavy hair. It's not straight but not curly. When I try to blow dry my hair as straight as possible I still go back over it with a flat iron and have fly-aways. This did not happen with this brush. My hair was smooth, straight, had good volume, and was very shiny without adding extra products. I don't find the heat indicator helpfull. I can't see the bands once my hair is wrapped around the brush.

5
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