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Ask a Hairstylist: This Is Why the Ends of Your Hair Are So Frizzy (And What You Can Do About It)

The fix is simpler than you think.
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What causes frizzy hair

Q: Hello! My hair is very fine but frizzy at the same time. My natural colour is a light brown/dirty blonde, but I highlight my hair to a very light blonde.

What causes frizzy hair

Allison's hair is fine but frizzy.

I've always had problems with my hair being frizzy and appearing damaged. Even though I don't use heat on my hair, the ends feel dry. When my hair grows long, they also thin out and lose shape.

What causes frizzy hair

Despite not using heat, Allison's ends appear damaged.

My hair also has a strange tendency to be straighter on the top and a lot more wavy/curly underneath. 

What causes frizzy hair

The top layer of Allison's hair is straight, but underneath, it's wavy.

Any advice you can give me on how to cut and style my hair without using too much heat would be great! I'd also like to know if you think a keratin treatment would be beneficial. — Allison

A: Allison, you don't have frizz because you were born with frizz. You have frizz because you're not moisturizing.

You need to use masks to re-hydrate and to fix all the damage that's being done by colouring. I recommend the Kérastase mask for colour-treated hair. You should do it at home every week.

Kerastase Reflection Masque Chromatique for Fine Hair

Kérastase Reflection Masque Chromatique for Fine Hair

You also need to use a liquid protein. That is also from Kérastase. It deposits protein and reconstructs the hair fibers from the inside out. This should only be done once or twice a month, maximum. You can either buy it yourself or do it at the hairstylist—your choice.

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Kérastase Resistance Fibre Architecte

With regards to your cut, you need to have frequent trims, even though you want your hair to be long. That way, all those dry ends can become healthier. The healthier the hair, the less frizz, bottom line.

I would take off about three inches. That will give you a fresh start and then you can focus on helping your ends out. It seems like everything above your chin is healthy, but below the chin is more damaged.

Scarlett Johansson Met Gala 2012

Scarlett Johansson at the 2012 Met Gala.

Your colour is good. Your skin has a lot of gold in it, so the gold pigment suits you like a glove. It's stunning on you.

The only thing missing is a few highlights on the top to create a blonder look. That will give you a bit of a lift. It should be a lighter gold blonde, and around the top only. Or you could go with baby blonde highlights, but not too often because that will be more damaging.

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Erin Heatherton at the 2013 FXX Network Launch Party.

As for styling, don't be scared of the blowdryer. The heat will calm the frizz down. No heat, and your hair will frizz up. 

You need a heat protector. You could use Nectar Thermique from Kérastase.

Kerastase Nutritive Nectar Thermique

Kérastase Nutritive Nectar Thermique

You have a soft wave naturally, so you can either straighten it or put a bit of a wave into it every now and then.

But to get rid of the bottom frizz, you need to put the time into it and blow-dry it. That's why your hair is frizzing up—a lack of moisture and not applying heat with a blowdryer.

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