Maybe, but it's complicated.

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Woman with Smooth Blonde Hair
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It's sometimes referred to as Brazilian blowout, but is different than a smoothing treatment which may contain keratin—confusing, we know. Here we'll break it down for you.

What is keratin?

Keratin is a protein that's found in our nails, hair, and comprises the outer protective layer of our skin. Damaged keratin is easy to spot as it often results in brittle hair and nails.

What is a keratin treatment and how long does it last?

A keratin treatment is semi-permanent, in-salon chemical treatment that adds keratin into the hair follicle, producing more relaxed strands with less frizz and an overall healthier look and feel. It can last anywhere from three to six months.

What's in a keratin treatment?

Many keratin hair treatments do contain formaldehyde, so it's important to do your research, consult your stylist, and also ask for details on the particular formula that will be applied to your hair. Just as there are different brands of hair color or gel polish, there are also a variety of keratin treatments on the market; it's important to know what you're getting. Cezanne, for example, is one keratin treatment option that promises the same results as formaldehyde versions, but without the heavy chemicals.

Will a keratin treatment make your hair straight?

A keratin treatment is different than a chemical relaxer. A chemical relaxer is a permanent process that breaks down the overall structure of the hair resulting in straightened strands. A keratin treatment may result in slightly more relaxed natural hair, waves, or curls.

Can a keratin treatment damage your hair?

As long as your stylist uses a high-quality product, paired with the proper technique, you shouldn't see any damaging effects. In fact, many women opt for a keratin treatment because it can be less damaging than the daily heat styling that was required prior to treatment. The process actually seals the hair cuticle, cutting back on frizz, while also providing a kind of armor to protect from additional damage.

WATCH: Everything You Need To Know When Styling Curly Hair

Are there keratin options that don't require a salon visit?

There are plenty of hair products formulated with keratin protein. From shampoos to hair masks, keratin products can help smooth and repair, but without the hefty salon bill. There are also at-home keratin treatments though you won't see quite the same results (or length of results) as you would with a professional job.