Everything You Need to Know Before Getting a Brazilian Blowout

Desire sleek, smooth, and perfectly straight hair with no frizz? The renowned Brazilian blowout, often called “hair botox,” could be the perfect solution. This semi-permanent treatment is like a regular salon blowout but with more intensity, designed to lock in moisture and deliver a shiny finish. We talked to several expert hairstylists to explain what Brazilian blowouts are, what you should consider, and who’s the ideal candidate for the treatment.

What Exactly is a Brazilian Blowout?

A Brazilian blowout is a semi-permanent hair treatment that uses a specialized liquid keratin formula, forming a protective coating around each hair strand, according to celebrity hairstylist Emilio Uribe. 

“In general, the treatment smoothens your hair and helps reduce frizz,” says Uribe. “You may also notice your hair becoming more resistant to heat styling, and it will boast a stunning, glossy finish.” 

In Brazil, it's actually called the "Progressive Blowout" due to its gradual straightening effect, explains Rogerio Cavalcante, stylist and owner of The Second Floor Salon. As both a Brazilian native and professional stylist, he's well-versed in the treatment. He notes that with repeated treatments, your hair becomes progressively straighter. 

Does the Brazilian Blowout Use Formaldehyde?

Yes, Brazilian blowouts may contain formaldehyde or formaldehyde-releasing substances. This has raised concerns for various reasons. First, formaldehyde is known to be carcinogenic (cancer-causing). Although present in small amounts in these treatments, it's important to be aware of the potentially harmful effects. Another concern, according to Cavalcante, is that the treatment affects both the cuticle and the cortex, which can lead to a damaged look once the effects wear off. 

There are other options that are considered safer for both your hair and body as alternatives to Brazilian blowouts. For instance, keratin-infused shampoos and glossing treatments offer a temporary smoothing effect that can be done at a salon or even in the comfort of your own shower. 

Who Is a Good Candidate for Brazilian Blowouts? 

A Brazilian blowout is suitable for anyone looking to tame volume, control frizz, and achieve smoother, straighter hair. Cavalcante mentions that the treatment is customizable to your liking, letting you decide just how straight you want your hair when the process is complete. 

“It’s not only about reaching a specific look,” says Cavalcante. “Some individuals choose the treatment to simplify and expedite their hair care routine. For example, those who have undergone a keratin treatment notice that their hair dries much quicker. Some even skip the hair dryer entirely, as the keratin treatment leaves hair naturally frizz-free and smooth.” 

Who Shouldn’t Get Brazilian Blowouts?

Avoid getting a Brazilian blowout if you cherish your natural texture and volume. This treatment is designed to sleek and smooth your hair, which could potentially eliminate your curls and waves. According to Uribe, “If you have ringlets, I don't recommend the treatment unless you're prepared to take a risk, as some curls may not return to their original pattern once the process fades away.”

He also suggests steering clear of this treatment if you have damaged or brittle hair, are sensitive to strong odors, or if you're pregnant or breastfeeding.

How Much Do Brazilian Blowouts Cost?

The price of a Brazilian blowout can vary, but typically ranges from $150 to $600, depending on factors such as your hair's thickness and length, the salon, and the products used. 

“It’s important to note that lower-priced products can indeed straighten hair, but they might offer fewer benefits or contain higher levels of formaldehyde, which can trigger allergies in clients and damage hair,” says Cavalcante. “On the other hand, pricier products are often enriched with moisturizing ingredients to counterbalance the damage caused by the acid and heat applied to the hair.”

What Does a Brazilian Blowout Look Like?

Be prepared for a lengthy salon visit when getting a Brazilian blowout. Uribe notes that the process typically takes at least three hours, but it can extend further if your hair is long or thick. This includes applying the treatment, allowing it to set, drying, and flat ironing. Flat ironing helps seal the cuticle and ensures the product penetrates the hair follicle.

“The immediate aftercare involves keeping your hair dry for at least 72 hours, and definitely avoiding anything that might cause indentations—such as hair clips, ponytails, and barrettes,” Uribe advises. “No hair products either. I always tell my clients to try not to tuck their hair behind their ears and to avoid direct sun exposure if possible.” 

How Long Does a Brazilian Blowout Last?

While it largely depends on your hair type, texture, and styling habits, a Brazilian Blowout typically lasts between three and four months, provided you follow the appropriate aftercare instructions.

How Do You Maintain a Brazilian Blowout? 

Your hair is particularly delicate after a Brazilian blowout. As Uribe advises, you should avoid any products or hairstyling for the first 72 hours post-treatment. 

Conditioning 

Once the initial 72 hours have passed, it's time to focus on hydration. “Ideally, after the treatment, you should apply a hair mask at least every two weeks; I recommend doing it weekly,” Uribe suggests. “Remember, your hair has gone through a kind of trauma with these chemicals. It deserves some TLC—even if it looks amazing.”

Roots

As your hair grows, the roots will showcase your natural texture and appearance. Uribe advises using a blow dryer or flat iron to smooth them out. Once your roots grow about an inch, you can schedule a touch-up treatment. 

Coloring & Highlights

It's important to wait at least two weeks before coloring your hair after a Brazilian blowout. Cavalcante recommends spacing out treatments and suggests doing your coloring before the blowout. 

“Ideally, you would color your hair first, then wait three months for the Brazilian Blowout, touch up your color roots, and then do the Brazilian Blowout again. It's a bit of a commitment managing both, but the results are worth it,” he explains.