What Does Keratin Do for Hair?

What does keratin do for hair?

Keratin hair treatments are a relatively recent trend in the hair care industry that originated in the early 2000s. They’ve since gained a lot of traction thanks to their lucrative promise of coating hair strands and taming frizzy hair into submission.

So what does keratin do for hair? Are salon keratin treatments the best method to achieve smooth hair, or should you skip them for other straightening treatments? Here’s everything you need to know about keratin treatments and whether or not you should go for the Brazilian blowout!

Is Keratin Natural?

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Keratin is a naturally occurring protective protein that makes up the outer layer of our hair, skin, and nails. It’s also found in animal feathers, hair, hooves, and horns, where most commercial keratin treatments get it.

Human hair fiber has three layers: the inner medulla, the middle cortex, and the outer cuticle.

The hair cuticle is our main concern here as it’s made of overlapping keratin layers that look almost like fish scales. Its main job is to protect the hair shaft, make the hair fiber waterproof, and prevent breakage.

However, with chemical and heat damage, the keratin layer gets stripped and causes the hair to become more porous and susceptible to damageOpens in a new tab..

How Do Keratin Treatments Work?

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At Team True Beauty, we’re all about embracing and enhancing your natural beauty. One way to do this is through a salon keratin treatment, a process that nourishes and revitalizes your hair. This treatment begins with the application of a keratin solution, which often includes formaldehyde, to damp hair. The magic happens as the solution sits on your hair for a few moments, paving the way for a transformation.

Once the solution has set in, your stylist will meticulously blow dry and straighten your hair using a flat iron. This step is crucial as it “sets” the keratin onto your hair’s surface, ensuring the treatment’s longevity, typically lasting several weeks. The formaldehyde plays a key role here, loosening the bonds in your hair cuticle. This allows the keratin to effectively penetrate and repair the gaps typically found in damaged hair. The result? Your hair may feel slightly more relaxed in texture, but the real takeaway is the enhanced shine and a noticeable reduction in frizz, revealing a sleek, polished look.

It’s important to differentiate keratin treatments from traditional hair straightening methods. Unlike chemical relaxers, which use strong chemicals like ammonium thioglycolate and sodium hydroxide to break hair’s natural disulfide bonds, keratin treatments work by replenishing your hair’s natural protein without altering its structure. This means you can enjoy smooth, manageable hair while maintaining its natural texture and vitality.

At Team True Beauty, we believe in treatments that not only make you look beautiful but also feel good about the health and integrity of your hair. When considering a keratin treatment, we recommend consulting with your stylist about the ingredients and ensuring they align with your personal and environmental values. After all, beauty is not just about looking good – it’s about feeling true to yourself and respecting the world around us.

Keratin Treatment Pros and Cons: Is Getting a Keratin Treatment Good for the Hair?

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If you’re still on the fence about salon keratin treatments, here are the pros and cons to consider:


They Last for a Few Weeks/Months

Professional keratin treatments found at reputable hair salons should last you for about six to eight weeks. During that time, you’ll enjoy healthy hair that looks and feels amazing, which is especially great if you have thick hair that’s a struggle to manage.

Better Hair Growth

You might notice your hair length getting a boost after a keratin treatment. It has less to do with the keratin product directly affecting the hair follicle and more to do with how these treatments strengthen hair and reduce frizz and breakage, allowing you to retain length better.

You Can Keep Your Natural Curls

Unlike other hair smoothing products that completely erase any curl pattern you might have, keratin treatments tend to tame curly hair without straightening it. You might notice your curls have become looser, but the effect is usually temporary and washes out over time.


Formaldehyde Exposure

Most keratin hair treatments contain formaldehyde, a chemical that irritates the nose, eyes, and lungs. That’s why pregnant women can’t get keratin treatments.

That said, some keratin treatments offer a formaldehyde-free formula that uses glyoxylic acid instead. These formulas create fewer fumes and are usually safer for a wider variety of hair types.

High Cost

With a price range of $300 – $800 per treatment, the cost of getting regular keratin hair treatments can quickly add up.

Sure, you can find DIY keratin treatments at beauty supply stores and online, but using them on yourself could be dangerous, time-consuming, and offers underwhelming results.

Potential Hair Loss

Although keratin treatments should leave you with stronger hair, incorrect aftercare practices can contribute to breakage and loss of hair.

To prevent ending up with damaged hair, avoid washing your hair for the two to three days following the treatment. Then, use a sulfate-free shampoo, don’t detangle wet hair, and sleep on a satin pillowcase or wrap your hair with a silk scarf or bonnet. This reduces friction and protects your hair until your next salon visit.

Do Other Keratin Products Work As Well As Keratin Treatments Do?

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Hair Products

Hair oilsOpens in a new tab., shampoos, and conditioners that contain keratin as an ingredient are becoming more popular nowadays. They promise the same benefits as a professional keratin treatment at a fraction of the cost. While they might have a similar smoothing effect, it’s usually temporary and fades away in a few hours or days.

Keratin Supplements

When it comes to keratin supplements, they’re scientifically proven to improve muscle massOpens in a new tab., but no studies were conducted on how they affect hair health.

Just make sure to ask your doctor whether they’re safe for you to take, as some people with kidney disease might struggle to eliminate them from their system.

To Wrap Up

You’ve seen them endorsed by one celebrity hairstylist after the other, but are keratin hair treatments all they’re cracked out to be?

The answer is yes! Thanks to new technologies in hair cosmetics, you can now get the smooth, silky, luscious hairOpens in a new tab. you’ve always wanted. Keratin treatments coat the hair fiber, patching up damaged areas and leaving the hair healthy and shiny.

Just make sure you’re not allergic to formaldehyde fumes or request a formaldehyde-free product to avoid the worst of keratin treatment side effects. And remember that caring for your hair after treatment is crucial to prevent breakage and damaged hair.

Paulina Romain

Paulina Romain is an entrepreneur and artist in the beauty industry. She is the founder and owner of The Art of Ink Studio, where she provides services such as permanent cosmetics, microblading, and artistic ink, focusing on personalized body art. Additionally, she owns Mill Pond Salon, through which she aims to deliver big-city salon services in the comfort of a small town. Apart from her hands-on work in her studios, Paulina Romain is also active on social media platforms like TikTok, where she showcases her fine line and cosmetic tattoo work. Furthermore, she's been in the salon and beauty industry for over 14 years and operates Team True Beauty with Sam Romain. This platform includes a blog on various beauty-related topics and marks the opening of two beauty brands by the couple.

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