Keratin 101: What is Keratin & Do You Need a Keratin Treatment?

Miriam Herst | 30 January 2018

Learn the ins and outs of this miracle protein.

You’ve no doubt heard about keratin treatments and seen keratin products lined up in the hair aisle at your local drugstore. But what is keratin? Keratin is a protein naturally found in our bodies, especially in our hair, that contributes to the overall makeup and health of our hair and nails. It forms a protective shield around each hair shaft for elasticity and extra strength. Overtime with daily wear and tear, keratin can be broken down which often leads to hair damage. For a more in depth and easy to comprehend explanation, we’re breaking down what it keratin and which keratin infused products you need to use below.

What Is Keratin?

what is keratin red brown long curls
What is keratin? Learn everything you need to know here.

What is keratin exactly?

As we mentioned above, keratin is a protein naturally found in our bodies. More specifically, it’s a family of structural proteins that makes up a lot of different parts of our bodies. From the outer layer of skin to our hair and our nails, keratin plays a key role in your body’s makeup. Keratin is present in both the outer protective layer of each hair shaft and the inner cortex, too.

Damaged hair has often suffered losses in the keratin department. Hair dye processes and exposure to heat can compromise the structure of each hair shaft. You’ll notice visible differences in hair that’s been damaged and is lacking those proteins. Along with switching up your diet, there are certain products you can incorporate to help strengthen your strands and restore some of that protein.

Which keratin hair products do you need?

First things first, do no harm. If you’re planning on continuing your heat styling ways you’ll want to start prepping your strands with a heat defense product. TRESemmé Keratin Smooth Heat Defense Spray helps shield your hair from the damaging effects that hot tools can have on your strands. This spray will protect your strands and seal in shine.


On a day-to-day basis, you’ll want to find a way to incorporate a keratin infused product into your routine. Suave Professionals Keratin Infusion Smoothing Hair Serum is a lightweight keratin-infused formula that will add shine to your strands while fighting frizziness.



And last but not least is Nexxus Keraphix Damage Healing Masque. This mask combines Black Rice extract, keratin, collagen and elastin to deeply condition your hair and leave it more aligned, flexible and smooth. Use this mask when your hair needs a little extra TLC and a dose of extra keratin.



Should you get a keratin hair treatment?

Read up on the details and benefits of a keratin treatment and find out if it’s the best option for you.

Do you want to learn more about keratin? Here are 6 ways to use keratin products at home.

Read more