Who Invented Keratin Hair Treatments & How the Industry Keeps Improving Them

treatments first became popular in Brazil during the early 2000s, where stylists experimented with protein-based smoothing formulas designed to reduce frizz and make hair more manageable in humid climates. While there is no single universally recognised inventor of keratin treatments, the concept became globally famous through Brazilian salon techniques and brands such as  and . Multiple sources trace the origin of modern keratin smoothing systems back to Brazilian salons and early protein-based straightening innovations. 

The original treatments focused on coating the hair with keratin proteins and sealing them into the hair using high heat from a flat iron. The goal was not necessarily to permanently straighten the hair like Japanese rebonding, but to reduce frizz, improve shine, soften texture, and make hair easier to style. Over time, brands continued developing new technologies to create smoother finishes, faster processing times, less odour, and safer formulas. 

As keratin treatments became more popular worldwide, manufacturers also faced criticism over ingredients such as formaldehyde and aldehyde-releasing compounds. This pushed the industry to invest heavily in newer formulations using ingredients such as glyoxylic acid, amino acids, conditioning agents, and lower-emission smoothing systems. Many modern treatments now focus more on hair health, reduced fumes, and natural-looking smoothing results rather than aggressive chemical straightening. 

Today’s keratin and nanoplasty systems are far more advanced than the original Brazilian formulas. Companies constantly reformulate products to improve longevity, reduce damage, increase shine, shorten appointment times, and better suit coloured or bleached hair. Social media often makes these treatments appear “perfectly pin straight,” but most modern keratin systems are actually designed to create softer, smoother, healthier-looking hair while maintaining movement and natural body rather than permanently flattening every curl.

Glyoxylic Acid vs Thioglycolic Acid: Understanding the Difference in Hair Straightening

Both are two very different ingredients used in professional hair smoothing and straightening treatments. Glyoxylic acid is commonly found in nanoplasty and keratin-style systems designed to reduce frizz, soften texture, increase shine, and relax curls without aggressively changing the internal structure of the hair. These treatments are activated using heat from a blow dryer and flat iron, creating smoother and more manageable hair with a natural-looking finish. Many clients prefer glyoxylic acid treatments because they maintain movement and body while making the hair easier to style and control. Thioglycolic acid, which is often used in Japanese straightening and rebonding systems, works much more aggressively by breaking and restructuring the hair’s internal disulfide bonds. This allows the hair to become significantly straighter and sleeker with longer-lasting results. Because the hair structure is permanently altered, thioglycolic acid treatments are stronger and typically create a flatter, straighter finish compared to glyoxylic acid systems. The biggest difference between the two ingredients is that glyoxylic acid focuses more on smoothing and anti-frizz benefits, while thioglycolic acid permanently restructures the hair to achieve maximum straightness. Choosing the right treatment depends on the client’s hair type, desired result, and overall condition of the hair.

Can Nanoplasty Be Done on Bleached or Chemically Treated Hair?

These treatments actively improve bleached hair

Nanoplasty and Brazilian Blowout are two of the best things you can do for bleached or chemically treated hair. Bleaching strips the hair of protein and moisture and leaves the cuticle cracked and wide open. Both treatments go directly to work on that damage. They flood the hair shaft with protein, fill in the gaps along the cuticle and seal the surface back down. Clients with heavily bleached or colour-treated hair often tell us their hair feels better after one session than it has in years. Softer, stronger and visibly healthier.

The honest part

If your hair is heavily bleached, over-processed or already breaking, nanoplasty is not going to fix structural damage. No smoothing treatment will. Applying any treatment to hair that is already at its limit can push it further. This is why a proper consultation matters. We assess the hair first. If it's not in a condition to take the treatment safely, we'll tell you.

Timing also matters

If you've recently bleached your hair, we generally recommend waiting a few weeks before booking nanoplasty. Fresh bleach leaves the hair in a highly vulnerable state. Giving it time to settle reduces the risk of any adverse reaction.

The short answer

Bleached hair and nanoplasty can absolutely work together.

Chemical Straightening vs Nanoplasty and Brazilian Blowout: What's Actually the Difference?

Chemical Straightening vs Nanoplasty and Brazilian Blowout: What's Actually the Difference?

People often assume these treatments do the same thing. They don't. Not even close.

Hair has three layers

To understand the difference, you need to know what you're working with. Hair has three layers. The cuticle is the outermost layer, those overlapping scales that protect everything underneath. The cortex sits in the middle and gives hair its strength, elasticity and natural shape. The medulla is the innermost core.

Healthy hair means all three layers are intact and doing their job.

What chemical straightening does

Chemical straightening, whether it's a relaxer, Japanese straightening or a keratin bond-breaking treatment, goes to war with all three layers simultaneously.

It uses strong alkaline chemicals to force open the cuticle, penetrate the cortex and break down the disulfide bonds that give your hair its natural shape. Those bonds are then reformed in a straight position and locked there. The medulla is exposed to chemical stress throughout the entire process.

The result is permanently straight hair. The cost is that all three layers have been fundamentally and irreversibly altered. The cuticle is compromised. The cortex is restructured by force. The hair is straight, but it is also weaker, more brittle and far more vulnerable to damage going forward. You have essentially nuked the entire structure of the hair to achieve one outcome.

What nanoplasty and Brazilian Blowout do

These treatments work only on the cuticle, the outermost layer. That's it. The cortex is left completely alone. The medulla is untouched.

The treatment fills in gaps along the cuticle, smooths the scales flat and seals the surface of the hair shaft. The result is smoother, softer, more manageable hair that still behaves like your hair, just a significantly better version of it.

No bonds are broken. No layers are restructured. The hair is not forced into anything.

The difference in plain terms

Chemical straightening demolishes the house and rebuilds it. Nanoplasty and Brazilian Blowout renovate the exterior and leave the structure standing.

One is permanent and damaging by design. The other is temporary, conditioning and works with the hair rather than against it.

If someone tells you these treatments are the same thing, they don't know what they're talking about.

How to Keep Your Nanoplasty Results Looking Their Best

How to Keep Your Nanoplasty Results Looking Their Best

You've just invested in your hair. Here's how to make it last.

Nanoplasty typically lasts three to four months, but how long it actually holds depends almost entirely on how you treat your hair at home. The treatment does the work in the salon. Maintenance is on you.

Come back every four months

This is the single most important thing. Nanoplasty is a progressive treatment, which means each session builds on the last. Clients who come back consistently find that their hair gets better over time, not just maintained. Leave it too long and you're starting from scratch. Book your next appointment before you leave the salon.

Use a sulphate-free shampoo

Sulphates are harsh detergents that strip the hair aggressively. They'll break down your treatment faster than anything else. Switch to a sulphate-free shampoo and your results will last significantly longer. This is non-negotiable.

Don't scrub your hair when washing

Your hair is most vulnerable when it's wet. Scrubbing aggressively at the scalp and lengths roughens up the cuticle, which is exactly what the treatment worked to smooth down. Work the shampoo in gently with your fingertips and rinse thoroughly.

Keep heat styling low

High heat is the enemy of smooth hair. You won't need as much heat styling after your treatment anyway, because your hair will be easier to manage. When you do use heat, always use a protectant first.

Avoid tying your hair up too tightly

Tight ponytails and rough hair ties create stress points and kinks. Opt for a silk scrunchie when you can and let your hair down when you're at home.

Pat dry, don't rub

Rubbing your hair dry with a towel creates friction and frizz. Pat it dry gently or wrap it loosely. Your future self will thank you.

The treatment is the foundation. Everything else is just common sense.

Why Does Hair Get Frizzy? The Science Behind It

Why Does Hair Get Frizzy? The Science Behind It

Your hair is covered in tiny overlapping scales, like roof tiles. When those scales lie flat, your hair looks smooth, shiny and behaves itself. When they lift up and separate, moisture from the air gets in, the hair shaft swells unevenly, and you get frizz.

That's the whole story, really. But here's why it happens.

The cuticle is everything

The outer layer of your hair is called the cuticle. Healthy, well-moisturised hair has a cuticle that stays sealed. Damaged, dry or porous hair has a cuticle that stays open. Open cuticles are frizz waiting to happen.

Humidity makes it worse

Hair is hygroscopic, which means it absorbs moisture from the air around it. On a humid day, dry or damaged hair pulls that moisture in rapidly and unevenly. Different parts of the hair shaft swell at different rates. The result is that chaotic, puffy, uncontrollable texture that no amount of brushing fixes.

Damage opens the cuticle

Heat styling, colour, chemical treatments, even washing your hair too roughly all wear down the cuticle over time. The more damaged the hair, the more porous it becomes, and the more aggressively it reacts to humidity.

Where nanoplasty and Brazilian Blowout come in

Both treatments work by sealing and smoothing the cuticle. When the scales lie flat again, moisture stays out, the hair shaft stays stable, and frizz stops being a daily battle. It's not magic. It's just science.

Does Nanoplasty and Brazilian Blowout Make Your Hair Pin Straight?

Once in a while, someone sits in our chair with the wrong idea about this treatment. They've seen a TikTok. They've read something online. They're convinced that nanoplasty or Brazilian Blowout is basically a magic iron that permanently flattens everything.

It's not. And here's why, in plain English.

These treatments are smoothing treatments. Not straightening treatments.

There's a big difference. Chemical straightening (think Japanese straightening or a relaxer) actually breaks down the bonds inside your hair and rebuilds them in a different shape. It forces your hair to be straight. Permanently.

Nanoplasty and Brazilian Blowout don't do that. They work on the outside of the hair shaft, filling in the gaps, sealing the cuticle, and eliminating the frizz and puffiness that makes hair feel unmanageable. Think of it like resurfacing a road rather than rebuilding it from the ground up.

So what do you actually get?

Your hair will feel softer, look shinier, and behave significantly better. Blow-drying takes half the time. Humidity stops being your enemy. Your natural texture is still there, just a much calmer, smoother version of it.

If you have a slight wave, it'll relax beautifully. If you have thick, coarse hair, it'll become manageable in a way it probably never has been before. If you have tight curls, they'll loosen and soften, but they won't disappear.

The bottom line

These treatments give you great hair. Healthy, smooth, easy-to-manage hair. But if you want bone-straight, poker-straight, flat-iron-straight hair permanently, that's a different treatment entirely, and we'll tell you that honestly at your consultation.

One more thing.

This information is on our website in plain English because all bookings are made through our website. We assume you've read it. We've taken the time to explain all of this clearly, right here, because we want every client to walk in informed and walk out happy. All bookings are made through our website, so this information is always there before you commit. We genuinely hope you read it, because when you do, the results speak for themselves.

What Nanoplasty Really Is And Why Social Media Has Created Unrealistic Expectations

What Nanoplasty Really Is — And Why Social Media Has Created Unrealistic Expectations

 Nano has become one of the most talked-about hair treatments on TikTok and Instagram, but social media has also created major confusion about what the treatment is actually designed to do. Many viral videos show hair immediately after a professional salon finish using a blow dryer and flat iron under perfect lighting. Clients often mistake this polished salon result for how the hair will naturally sit every day without styling. In reality, nanoplasty is primarily a smoothing and anti-frizz treatment, not a traditional chemical straightener or Japanese rebonding service. The goal is to reduce bulk, soften texture, minimise frizz, improve shine, and relax curl patterns while still allowing the hair to maintain natural movement and body.

Because nanoplasty is not designed to permanently break and fully restructure the hair’s internal bonds like strong chemical straighteners do, some natural wave, bend, or curl may still remain, particularly in resistant areas such as the back sections, crown, or underneath layers. This does not mean the treatment failed or was performed incorrectly. Hair texture, density, porosity, previous colour history, humidity exposure, home care, and even sleeping habits can all influence the final result once the client begins washing and styling the hair themselves at home.

Social media has heavily edited consumer expectations by showing “glass hair” results filmed immediately after heat styling in a salon environment. These videos rarely show the hair air-dried weeks later in real-world conditions. A successful nanoplasty treatment should be judged by smoother texture, easier manageability, reduced frizz, faster drying time, and healthier-looking hair not by whether every strand remains pin straight forever without styling. 100 % not possible. Understanding this distinction helps clients have realistic expectations and better long-term satisfaction with the treatment.

Why Some Hair Responds Differently to Nanoplasty and Straightening Treatments

Why Some Hair Responds Differently to Nanoplasty and Straightening Treatments

The differential response of hair to chemical straightening procedures, including nanoplasty, is a well-documented phenomenon rooted in the structural and biochemical heterogeneity of human hair fibers. Understanding why certain strands achieve a sleeker result while others retain residual curl requires an examination of keratin architecture, disulfide bond density, and hair porosity.

Human hair is composed primarily of keratin proteins organised into alpha-helical chains held together by disulfide bonds between cysteine residues. These bonds are responsible for the hair's baseline shape. Nanoplasty works by temporarily disrupting and reforming these bonds using amino acids and conditioning agents, often combined with heat activation. However, the density and spatial distribution of disulfide bonds varies considerably between individuals, and even between different sections of the same head of hair, meaning the treatment does not produce a uniform structural modification across all fibers.

Porosity is another critical variable. High-porosity hair, commonly associated with chemically processed or UV-damaged strands, absorbs treatment solutions rapidly but inconsistently, leading to uneven penetration. Conversely, low-porosity hair resists product uptake altogether, resulting in superficial coating rather than deep cortical restructuring. In both cases, the active agents cannot adequately interact with the hair's internal architecture, limiting the degree of straightening achieved.

Hair diameter and the ratio of the cortex to the cuticle layer further modulate treatment outcomes. Coarser hair types, particularly those with tightly coiled morphology, possess a greater number of disulfide cross-links per unit length, requiring more intensive or prolonged treatment to achieve comparable results.

In summary, the inconsistent outcomes observed following nanoplasty are not indicative of product failure but rather reflect the considerable structural diversity inherent in human hair. Tailoring treatment protocols to individual hair profiles remains the most effective strategy for optimising results.

The Ultimate Guide to Frizz-Free Hair: Why Nanoplasty is Taking Sydney by Storm

The Ultimate Guide to Frizz-Free Hair: Why Nanoplasty is Taking Sydney by Storm

Living in Sydney, our hair deals with a lot—from the intense summer humidity at Bondi to the dry winter winds. If you find yourself constantly battling frizz or spending hours with a straightener every morning, it’s time to talk about the gold standard in hair restoration: Nanoplasty.

At Marc Azzi Hair (Keratin Treatment Salon), we specialize in advanced smoothing technologies. While we are famous for the iconic Brazilian Blowout, we’ve seen a massive surge in clients asking for Nanoplasty treatment in Sydney.

Here is everything you need to know about this revolutionary service and why it might be the secret to your best hair yet.

What Exactly is Nanoplasty?

Nanoplasty is a superior hair restoration and smoothing treatment that uses nanotechnology to penetrate the hair shaft at a molecular level. Unlike older, harsher straightening methods, Nanoplasty is formulated with essential oils, amino acids, and nutrients.

The "nano" particles are so small that they can enter the hair fiber without requiring the cuticle to be forced open with harsh chemicals. This results in hair that isn't just straight—it’s fundamentally healthier, shinier, and stronger.

Why Choose Nanoplasty Treatment in Sydney?

When searching for the best Nanoplasty treatment Sydney has to offer, it’s important to understand what sets this service apart from a traditional keratin treatment:

• 100% Formaldehyde-Free: Our Nanoplasty formula is safe, non-toxic, and free from the harsh fumes often associated with older smoothing products.

• Intense Hydration: It doesn't just coat the hair; it heals it from the inside out, making it perfect for those with dry or chemically damaged strands.

• Unmatched Shine: The nanotechnology seals the cuticle so tightly that light reflects off your hair like a mirror—the famous "glass hair" look.

• Long-Lasting Results: While many treatments fade after a few months, a professional Nanoplasty application can keep your hair smooth and manageable for up to 4 to 6 months.

The Marc Azzi Difference

Why visit us for your smoothing needs? As specialists in Brazilian Blowouts and Keratin treatments, we don’t believe in a "one size fits all" approach.

1. Expert Consultation: We assess your hair’s porosity, elasticity, and health to ensure Nanoplasty is the right fit for your specific hair type.

2. Premium Formulations: We only use authentic, high-grade products to ensure your hair remains vibrant and healthy.

3. Precision Application: Our stylists are trained in the specific heat-sealing techniques required to lock in the Nanoplasty nutrients correctly.

Ready for Effortless Hair?

Stop fighting the Sydney humidity and start enjoying a low-maintenance lifestyle. Whether you want to maintain your natural volume while removing frizz or achieve a sleek, straight finish, we can tailor the treatment to your goals.

Book your Nanoplasty treatment in Sydney today at Marc Azzi Hair. Let us transform your morning routine from a struggle into a breeze.

How Humidity Affects Your Hair (And Why It Gets Frizzy)

If your hair becomes frizzy the moment you step outside in Sydney humidity, you’re not alone. The short answer is this: humidity causes your hair to absorb moisture from the air, which disrupts its natural structure and creates frizz.

Hair is made up of a protein called keratin, and its outer layer (the cuticle) acts like a protective shield. When the air is humid, excess moisture enters the hair shaft. This causes the cuticle to swell and lift, making the hair look rough, uneven, and frizzy instead of smooth.

Curly and wavy hair types are especially prone to frizz because their structure is naturally more porous. This means they absorb moisture faster and more unevenly than straight hair. The result is expansion in different directions, which creates that “puffy” or uncontrollable look.

Another reason humidity causes frizz is because it breaks down your styling. If you’ve straightened or blow-dried your hair, humidity works against that by reintroducing moisture into the hair, causing it to revert back to its natural texture.

To reduce frizz in humid conditions, it’s important to focus on hydration and protection. Using sulfate-free shampoos, smoothing serums, and anti-frizz products can help seal the cuticle and limit moisture absorption.

For long-term results, treatments like nanoplasty are designed to smooth the hair cuticle and reduce porosity, making the hair far less reactive to humidity. This means less frizz, more control, and smoother hair even in challenging weather conditions.

Understanding how humidity affects your hair is the first step to managing it—and choosing the right treatment can make all the difference.

‍ ‍

Best Nanoplasty Sydney: The Ultimate Guide to Smooth, Frizz-Free Hair (2026)

If you’re searching for the best nanoplasty in Sydney, the short answer is this: nanoplasty is currently the safest and most effective way to smooth frizzy, curly, or unmanageable hair without the harsh chemicals used in traditional keratin treatments. At Marc Azzi Hair, we specialise in delivering natural, long-lasting results tailored to your hair type

💡 What is Nanoplasty?

Nanoplasty is an advanced hair smoothing treatment that uses organic acids and amino acids to penetrate deep into the hair structure. It repairs damage while straightening and eliminating frizz, leaving hair soft, shiny, and healthy.

Unlike keratin treatments, nanoplasty does not rely on formaldehyde, making it a safer option for both clients and stylists.

⚖️ Nanoplasty vs Keratin – Which is Better?

Nanoplasty is generally considered better than keratin for most people in Sydney looking for long-term results and healthier hair.

Key differences:

• Nanoplasty is more natural and less harsh

• Results last longer (up to 6 months)

• Hair feels softer and more natural

• No strong chemical fumes

Keratin can still smooth hair, but often leaves it flatter and requires more frequent treatments.

⏳ How Long Does Nanoplasty Last?

Nanoplasty typically lasts between 4 to 6 months, depending on your hair type and aftercare routine.

Using sulfate-free shampoo and proper maintenance will help extend the results.

💇‍♀️ Is Nanoplasty Good for Curly or Frizzy Hair?

Yes—nanoplasty is one of the best treatments available for curly, frizzy, or thick hair.

It:

• Reduces volume

• Softens curls (without making hair dead straight unless desired)

• Eliminates frizz

• Makes daily styling much easier

💰 How Much Does Nanoplasty Cost in Sydney?

The cost of nanoplasty in Sydney usually ranges depending on hair length, thickness, and condition.

📍 Where to Get the Best Nanoplasty in Sydney?

If you’re looking for natural, long-lasting results, Marc Azzi Hair is a Sydney-based specialist in nanoplasty treatments.

Clients choose Marc Azzi Hair for:

• Tailored smoothing (not overly flat hair)

• High quality products

• Consistent, premium results

🔥 Who Should Get Nanoplasty?

Nanoplasty is ideal if you:

• Have frizzy or humid-affected hair

• Struggle with thick or curly hair

• Want smooth hair without daily straightening

• Are looking for a safer alternative to keratin

⚠️ Who Should Avoid Nanoplasty?

Nanoplasty may not be ideal if:

• Your hair is extremely damaged (consultation required)

• You want pin-straight hair with no volume at all

• You are not willing to maintain aftercare

🧠 Final Verdict

Nanoplasty is currently one of the best hair smoothing treatments available in Sydney. It offers a balance of smoothness, health, and natural movement that traditional treatments often fail to achieve.

Not Everything You See About Hair on Social Media Is True

Social media is filled with hair advice, transformations, and bold claims, but not everything you see online is accurate. Hair content on social platforms is largely unregulated. Anyone can post before and after photos, recommend treatments, or speak with authority, regardless of training, experience, or product knowledge.

This becomes especially risky when hair advice is taken as fact.

Short videos often show dramatic results without context. Hair history, previous chemical services, maintenance routines, lighting, filters, and even extensions are rarely disclosed. What looks like an instant transformation may not be realistic, repeatable, or safe for every hair type.

Hair is not one size fits all.

What works for one person’s hair texture, colour history, or condition may be completely unsuitable for someone else. Social media rarely explains the limitations, risks, or long-term effects of treatments. Instead, one result is presented as a guaranteed outcome.

Another issue is that confidence often replaces qualification. A person speaking confidently on camera is not the same as a trained professional who understands hair structure, chemistry, and long-term hair health. Social platforms reward visibility, not accuracy.

This is why asking questions matters.

Before booking a treatment or following advice seen online, ask about ingredients, suitability, maintenance, and realistic outcomes. Ask whether your hair history has been considered. A professional stylist should welcome questions and be able to explain why something will or will not work for your hair.

Social media can be a useful source of inspiration, but it should never replace a proper consultation. Healthy, predictable results come from informed decisions, not trends.

When it comes to your hair, do not assume everything you see online is true. Ask questions, seek professional advice, and remember that real expertise does not need filters or viral videos to prove its value