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Hair Salon

Keratin & Smoothing Treatments

Humidity is the defining fact of hair in Miami Beach. Professional smoothing is how you win the argument — with the treatment system matched to your hair, not whichever one a salon happens to stock. Smoothing is reasonably priced, as you'll find on the menu below, and your own number is set by length and density at a free consultation.

Call (305) 604-0550

Rated 5 out of 5:“Simply the best hair salon in Miami Beach.”— Frederic J., Facebook

Consultations are always free. Prices are starting rates and may vary based on length, condition, or service complexity.

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Recent hair work

Gallery →
  • Brunette balayage hair color with caramel highlights, hand-painted and styled in loose waves at McAllister Spa's hair salon in Miami Beach
  • Sleek copper hair coloring with a glass-smooth blowout finish, by a South Beach colorist at McAllister Spa
  • Platinum blonde hair after a keratin smoothing treatment at McAllister Spa's Miami Beach hair salon
  • Beach-blonde balayage highlights in soft waves, colored at McAllister Spa's hair salon near South Beach
  • Bridal updo with caramel-highlighted twists and a crystal headband, styled at McAllister Spa in Miami Beach
  • Long blonde hair with soft layers and a smooth blowout finish, hair color by McAllister Spa in South Beach
  • Long dimensional blonde highlights with layered ends, finished in the chair at McAllister Spa in Miami Beach
  • Brunette hair with vivid pink peekaboo panels and loose waves, creative hair coloring at McAllister Spa in South Beach

Four Professional Systems, One Right Answer

Most salons carry one smoothing line and prescribe it to everyone. We work professionally across four — Brazilian Blowout, the name that defined the modern smoothing category; Keratin Complex, the original keratin therapy system; Magic Sleek, prized for its long-lasting straightening; and Hair Botox, a deep-conditioning smoothing option for hair that needs repair as much as frizz control. Which one you get should depend on your hair — its texture, its color history, its condition — and that decision is made in a free consultation, not by inventory.

Which Smoothing Treatment, Compared

What each system is for, and where its price starts. Every figure is a starting rate; your own is set by length and density at the free consultation.

Brazilian Blowout
Cuts frizz and keeps your natural movement; the shorter service, and you can wash the same day.
From $350
Keratin Complex
Goes further toward straight and lasts longer. The Express Keratin Blowout is the lighter version, from $275; KC Max is the strongest.
From $350
Goldwell Kerasilk
Goldwell's keratin smoothing system, for hair that is also colored with Goldwell lines.
From $350
Magic Sleek
Prized for its long-lasting straightening when straight, not just smooth, is the goal.
From By consultation
Hair Botox
A deep-conditioning smoothing option for hair that needs repair as much as frizz control.
From By consultation

Why Smoothing Matters More Here

A smoothing treatment in Denver is a luxury. In Miami Beach it is closer to infrastructure. Year-round humidity means untreated hair spends most of the day fighting the air, and daily heat styling to compensate does compounding damage. A professionally applied smoothing treatment cuts drying time, holds frizz off for months at a stretch, and lets hair survive an August afternoon on Lincoln Road with its dignity intact. It is one of the most requested services in our house, and has been for years.

Pricing & Booking

Current pricing for every smoothing treatment, by stylist tier, is published on our hair salon menu. Consultations are always free, and they matter more for smoothing than for almost any other service — the right system for your hair is a professional judgment, and we'd rather make it with you before you commit.

Smoothing ahead of a wedding? See how we time treatments for the big day →Booking around the holidays? Holiday Hair — Treatments Worth Booking First →

From the Journal

Who does your smoothing treatment

Smoothing is chemistry and sequencing — ask one of them at the consultation which treatment your hair actually wants.

Request anyone by name when you book — it's the single easiest way to get the right chair. Meet the whole team.

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Keratin & Smoothing near you

Sunset HarbourMid-BeachNorth Bay Road & La GorceEdgewater

Common Questions

How much is a keratin treatment in Miami Beach?

An Express Keratin Blowout by Keratin Complex starts at $275, a full keratin treatment at $350, and KC Max at $380, with the Goldwell Kerasilk smoothing treatment at $350. Every one is a starting price set by hair length and density at a free consultation, before anything is mixed.

What is the difference between a keratin treatment and a Brazilian Blowout?

Brazilian Blowout is a specific brand and a shorter service — it smooths and cuts frizz while leaving more of your natural movement, and you can wash the same day. A keratin treatment is a longer process that goes further toward straight and lasts longer. Which suits you depends on how much curl you want to keep, and that is a consultation question, not a menu one.

Is a keratin treatment actually good for your hair?

It is honest to say it is good *for* hair in one specific sense and not in another. A smoothing treatment coats and seals the cuticle, which is why hair comes out shinier, dries faster and takes far less heat to style — and less blow-drying and less flat-ironing every morning for three months is a genuine benefit to the hair. What it does not do is repair anything. It is a chemical service, not a treatment in the conditioning sense, and it will not rebuild hair that is already breaking. On fragile or over-processed hair the right answer is sometimes bond repair first and smoothing later, or not at all, and you will be told that at the free consultation rather than after the fact.

What happens three months after a keratin treatment?

It fades rather than ends, which is the part people are not told. There is no hard line at the root and no day where your hair reverts — the treatment wears off gradually over roughly two to four months depending on your hair and how often you wash it, and you notice it as your blow-dry slowly taking longer again. That is why there is nothing to grow out and nothing to correct. Most guests re-book when styling starts feeling like work again rather than to a calendar. Washing less often, and with a sulfate-free shampoo, is the single thing that most extends it.

Will smoothing ruin my curls?

It does not have to. A smoothing treatment can be dialled to take the frizz out and leave the curl pattern, which is what most of our curly guests actually want. Tell your stylist you want to keep the curl and they will choose the system and the processing time for that. Three of our stylists specialize in curly and textured hair.

How soon after color can I have a smoothing treatment?

Usually the same day is fine and often better, because the treatment seals the cuticle over fresh color. What we will not do is a big lift and a smoothing treatment back to back on hair that cannot take both. If your hair is already fragile you will hear that, and we will space them a few weeks apart.

What is the best keratin treatment in Miami Beach?

There is no one best, and a salon that says otherwise carries one system. The best keratin treatment is the one matched to your hair: Brazilian Blowout to cut frizz and keep movement, Keratin Complex to go further toward straight, Magic Sleek for the longest straightening, Hair Botox when the hair needs repair as much as smoothing. We work across all of them, from $275, and the free consultation is where the choice is made.

Does a keratin treatment hold up in Miami Beach humidity?

Yes; humidity is the reason to have one here. A smoothing treatment seals the cuticle, so hair stops drinking the air and frizzing, and the blow-dry that fought the humidity every morning takes a fraction of the time. It fades over two to four months rather than ending, and washing less often with a sulfate-free shampoo is what extends it most.

Which smoothing treatment is right for my hair?

It genuinely depends on your hair's texture, condition, color history, and how much straightening versus frizz control you want. We work across several professional systems — Brazilian Blowout, Keratin Complex, Magic Sleek and Hair Botox — precisely so the treatment can be matched to your hair rather than forcing every head through one system. Your stylist will recommend the right one at your free consultation.

How long does a keratin or smoothing treatment last?

Most professional smoothing treatments last roughly two to four months, depending on the system used, your hair type, how often you wash, and the aftercare products you use. Your stylist will give you an honest expectation for your specific hair and treatment at your consultation.

Can I wash my hair right after the treatment?

It depends on the system — some modern treatments allow same-day washing while others ask you to wait. Your stylist will walk you through the exact aftercare for the specific treatment you receive, including which sulfate-free products will protect your results longest.

Will a smoothing treatment work on color-treated hair?

In most cases yes — several of the systems we carry are designed to be safe over color, and some clients pair the two in a planned sequence. Because the right order and timing depend on your hair's history, this is exactly what the free consultation is for.

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