The 4 Best Keratin Hair Straighteners (Reviews)

If you’re looking for an alternative to keratin treatment, then take a look at the best keratin hair straighteners!

 A Keratin flat iron not only tames your dry, dull, brittle hair, but it also resuscitates it long term.

I’ve done the research, so you don’t have to.

Let’s take a look at my top picks for one of my favorite hair tools!

If you choose to purchase via my referral links, I may earn a small commission at no extra cost to you.

Don’t have time? Here is a quick comparison of our favorites!

CHECK: Best Hair Straightener for Car

Top 4 Keratin Hair Straighteners

A Keratin hair straightener is almost like your own Keratin treatment at home without paying for a regular salon treatment.

BabylissPro, Philips, Lumabella Keratin touch series, Remington SmartPro, and KIPOZI Pro are a few of the best hair products brands worth mentioning.

Each of them has its own specific features, yet not all of them come with the key features required to style your hair with ease.

So, let’s dive right in, I’m sure you’re excited to find the perfect product to make your hair silky!

Before we dive deeper, have a closer look at the chart below and compare their features.

#1 MHU professional Keratin Flat iron (Winner)

You will love this flat iron! It has user-friendly features that anyone can confidently use. And it is a great choice for those looking for a budget hair straightener.

If you are shopping for a flat iron to help you get rid of hair frizz or achieve perfectly straight hair, then you will find this is a great way to get softer hair.

What to love about the MHU Keratin Flat Iron!

For girls who have naturally thin and fine hair, this hot tool is your best bet. Tourmaline ceramic plating will help protect your hair as you style.

Compared to metal plated flat irons like titanium hair straighteners, a tourmaline plated iron is easy and gentle even for brittle hair.

What’s most interesting about the MHU flat iron is its keratin ion plate. We know that frequent heat-styling may lead to hair damage, but with keratin ion technology, you have the gentlest tool in your hands to help you get silky straight hair.

While ceramic flat irons are most suitable for fine and thin hair types, it is also great for straightening wavy and curly hair. Just choose the right temperature to achieve your desired look.

The ceramic tourmaline ionic flat iron from MHU is a simplistic Keratin flat iron suited for all hair types. The long tongs of this unit provide additional comfort while styling.

Let’s take a closer look at what it has to offer.

Features & Attributes

• Heats Instantly (30 seconds)
• Adjustable temperature
• Temperature range from 285°F to 450°F
• Ceramic plates
• Auto shutoff

Benefits of MHU Keratin Flat Iron

• Easy to access buttons
• Dual functionality – it both straightens and curls your hair
• Budget-friendly price
• Doesn’t catch your hair
• Lightweight
• Durable

Drawbacks of MHU Keratin Flat Iron

Doesn’t have smart temperature adjustment

It doesn’t have moisture adjustment

Does not have floating plates

Expert Tips

Always apply hair protectants before using any flat iron. This provides heat protection and lessens the risk of damage to the hair fibers.

What Influencers Have To Say

Check out how this flat iron helps this user get frizz-free hair in this cool video.

#2 CROC Keratin Flat Iron – Best Premium Straightener

Are you looking for a flat iron that gives you great smoothening results even for resistant, coarse hair? Or do you want something that will work on Afro hair?

The CROC Masters Flat Iron Keratin Flat Iron will give you the super sleek and smooth finish you desire.

Ceramic straighteners might be good for some hair types. However, if your coily hair is difficult to straighten no matter how many passes you do, then a titanium-plated iron will work best for you.

Flat irons are not created equal. For coarse and thicker hair, you need something more powerful than ceramic-coated plates. Titanium plates are ideal for curly and textured hair types.

If you’re all for quality and features, the CROC hair straightening tool is one of the best on the market. This iron really does wonders for stubborn wavy hair.

It is great for all hair types.

Features & Attributes

• Temperature range from 208°F to 450°F
• Titanium metal plates
• Ventilation system
• Digital settings
• Infrared technology
• Auto shut off
• Anti-stick and anti-static

Benefits of CROC Keratin Flat Iron

• Locks in moisture
• Releases excess heat to ensure healthy hair
• Adjustable temperature settings
• Glides smoothly on hair
• Comfortable to use

Drawbacks of CROC Keratin Flat Iron

• Expensive
• A little slow to heat up
• Some users find the larger plates difficult to create a beachy wave

Expert Tips

When using a hair straightener, there are some do’s and don’ts to get the best results. I found the tips in this video really helpful.

What Influencers Have To Say

Want to see how this straighter works, check out this review.

#3 Remington Smartpro Straightener – Best Smart Sensor

Unlike the previous two, Remington’s hair straightener doesn’t come with Sol-Gel technology or premium grade titanium plates.

Instead, this flat iron comes with quality ceramic plates and a SmartPro sensor to ensure secure straightening and a sleek finish.

This proprietary SmartPro sensor technology swiftly detects the moisture level of your hair.

It adjusts to the proper heat within seconds to make sure you experience the ultimate, safe, and gentle styling at home.

The 1-inch ceramic plates are infused with an Almond-Keratin combo for a smoother glide and additional conditioning.

This combination reduces the risk of damaging hair, and splitting ends. It works better on coarseness than regular hair straighteners.

Furthermore, the plates are constructed to give you a residue-free styling experience despite their seemingly oily surface.

Features & Attributes

• 5 heat settings
• Maximum temperature of 450°F
• Smart sensor
• Silicone sleeve
• 1-inch quality ceramic plates.

Benefits of Remington Smartpro Straightener

• Takes just 15 seconds to heat up
• Silicone sleeve allows for safe cool down
• One of the more affordable hair straighteners
• Almond oil micro conditioners for long-lasting gloss
• Salon length swivel cord

Drawbacks of Remington Smartpro Straightener

• Some users find it pulls hair
• No anti-static
• Long styling time for thick, long hair

Expert Tips

If you want to use a straightener after a salon keratin treatment, there are some best practices to follow. This video is full of helpful tips.

#4 Bcway Professional Hair Straightener – Best Wide Plate Flat Iron

If you prefer a flat iron with floating, extra large plates, then take a look at this budget-friendly option. 

This highly popular straightener packs a lot of punch for its price. It is perfect for using in conjunction with a keratin hair mask and does a good job of locking in moisture.

It comes in black or gold and has Ttitanium plates, making it suitable for most hair types.

Features & Attributes

• 5 temperature settings from 248°F to 450°F
• 3D floating titanium plates
• 2.16-inch plates
• 360° swivel cord
• Anti-static

Benefits of Bcway Professional Hair Straightener

• Heats in just 30 seconds
• Evenly distributes heat
• Great value for money
• Works well on unruly hair

Drawbacks of Bcway Professional Hair Straightener

• Some find it difficult to use
• The outer section of the plates can get hot, so more risk of accidental burns
• It is a bit on the heavy side

Expert Tips

For the best results, create sections of hair and straighten each area individually.

What Influencers Say

See this flat iron in action on Afro hair in this honest review.

A Comparative Chart for Clarification

Properties	CROC Keratin Flat Iron	Bcway Professional Hair Straightener	Remington Smart Pro Flat Iron	MHU Professional Keratin Ion Flat Iron
Plate Material	Titanium	Titanium	Ceramic	Ceramic Tourmaline
Smart Moisture Adjustment	Yes	No	Yes	No
Adjustable Temperature	208°F-450°F	248°F-450℉	300-450℉	285-450℉
Temperature Auto Lock	Yes	Yes	Yes	No
Heating Time	60s	30s	15s	30s
Residue-free Styling	Yes	Yes	Yes	No
Ionic Technology	Yes	Yes	Yes	Yes
Floating Plates	No	Yes	Yes	No
Rounded Edges	Yes	Yes	Yes	Yes
Plate Protectors	Yes	Yes	Yes	No
Price Range($)	More Than 200	Less Than 50	More Than 50	Less Than 50

READ MORE: Keratin Vs Straightening Permanently

Keratin Flat Irons Buying Guide

Now that you’ve seen some of the top options, I thought I’d share some tips that will help you choose the best keratin hair straightener for your hair and everyday styling needs.

What Is a Keratin Hair Straightener?

The functionality goes precisely with the name. These flattening irons are equipped with Keratin-infused plates or are designed to work with a keratin hair mask.

Keratin is a building block protein that is key for the hair shaft and also your nails and skin. [1]

This delicate element, once damaged, can affect the new cells within your hair by no longer protecting them. It causes hair damage, rough and dry hair, and even brittle hair.

Having been infused with Keratin protein, a Keratin hair straightener helps preserves your hair’s natural protein and locks the moisture.

It eliminates frizz and gives your hair a revived look while protecting it from extreme heat settings.

With specific properties, the micro Keratin conditioners strengthen your hair long-term.

Furthermore, keratin flat irons have the same ability as traditional flat irons. They can be heated as much as your regular flat iron, so you can straighten your hair the way you are accustomed to.

Additionally, their design is pretty similar as well. They provide excellent nourishment and revamp your hair texture.

READ MORE: Keratin Treatment Side Effects

Types of Keratin Flat Irons

There are two types of Keratin flat irons to choose from, depending on the needs of your hair. They are the following:

1. Keratin Flat Irons With Keratin Infused Plates

This is mainly the type by which we define a Keratin flat iron. 

The plates can be infused with argan oil or different proteins along with Keratin making them even more effective.

Titanium or Ceramic plates are infused with micro conditioners that help resuscitate your hair.

They are also great for making your hair look glossy and shiny. These flat irons are excellent alternatives to Keratin hair treatments.

2. Flat Irons That Protect Keratin Treated Hair

This type of hair straightener is very similar to traditional hair straighteners. They don’t have keratin infused plates but have all the traits of your regular flat iron.

The main feature that makes these flat irons different is that they protect and preserve Keratin treated hair.

To further clarify, you’ll need a protective flat iron once you’ve had a thorough Keratin treatment or a Brazilian blow dry.

In general, your hair retains the effect of such treatments for up to five months. If you feel like straightening during this period, you’ll have to use a Keratin protect flat iron.

It would be best if you always used a protective flat iron for your Keratin treated hair since the regular ones may totally ruin your hair’s polished look.

A protective flat iron detects and maintains the extent of heat necessary for your treated hair and protects it from overheating. It also preserves the nutrients within the hair strands and prevents damage.

The Profashion Steam Infrared Heat Ceramic Flat Iron and CROC New Classic Flat Iron are among my favorite protective flat irons for Keratin treatment protection.

You can also go for the Karma Beauty Professional Titanium Hair Straightener if you are on a budget.

Related: How Soon Can You Repeat Keratin Treatment?

Key Differences Between Keratin Flat Irons & Traditional Flat Irons

There are several dissimilarities between Keratin hair straighteners and traditional straighteners. Let’s take a look. 

Keratin Infusion

This difference is the main feature that seperatates the two types. Traditional flat irons don’t come with Keratin infused plates.

Importance of Plate-material

Choosing the plate material is vital when you buy a traditional flat iron.

Titanium is best for thick hair,  and ceramic is best for thin hair.

For Keratin flat irons,  having the right plate is less of an issue as they tend to suit most hair types.

The infused plates don’t have many risks when it comes to damaging your hair. But for this to work, they need to be able to detect the temperature necessary for your hair, regardless of the plate material.

Titanium plates heat up faster and have better heat retention. [2[

Moisture Detection and Lock Functionality

This is one of the core features of Keratin flat irons. It helps balance the moisture levels and protein infusion while also ensuring the consistency of moisturization.

In contrast, traditional hair straighteners don’t help balance the moisture levels of your hair.

Advantages Of Keratin Flat Irons

• Provides the necessary protein required for your hair.
• Suits every hair type.
• The quickest solution to get rid of frizzy, dry, or damaged hair.
• Nourishes and heals your hair long term.
• Protects the cells within your hair strands.
• If micro Keratin conditioners reach the root of your hair regularly, they’ll help maintain quality hair growth.
• Detects and locks in hair moisture
• Gives your hair a glossier and shinier look and a lasting result.
• A cheaper alternative to Keratin treatment or Brazilian straightening.

The Disadvantages

• You’ll have to buy another one once you’ve used up all the infused Keratin. This can happen in less than a year.
• Takes high maintenance. The plates, along with the effectiveness of protein wane away fast if not securely stored.

The Core Features of a Keratin Infused Hair Straightener

There are some core features you’ll find in Keratin hair straighteners, distinguishing their capabilities from others. We have listed these special functionalities below:

Keratin Infused Plates

Undoubtedly, this is the trait for which the flat iron is named. As we have mentioned above, the plates of these flat irons are infused with Keratin protein, which allows you to heal and straighten your hair in one go.

This protective protein is less prone to tearing or scratching than the other cell types produced by your body.

And it makes up both your hair and skin. As a result, when the hair cuticle absorbs this vital cell element, it strengthens your hair, the root of your hair, and scalp altogether to give you stronger and healthier hair.

So when you take a Keratin treatment or a Brazilian blowout straightening, it revitalizes your hair and your scalp.

Furthermore, the result lasts quite long; hence, why the trend is becoming more popular.

Since the cost of such treatments is expensive, Keratin hair straighteners can be a cheaper alternative.

They provide your hair with the same protective protein similar to those treatments.

Namely, they smooth down your overlapping hair cells with each use, and your damaged, dry, frizzy hair heals fast.

In contrast, your hair gets damaged and brittle when it lacks this protein. Besides, this lacking causes rough cracked scalps.

Optimal Use of Ionic Technology

Ionic technology in flat irons is pretty much the norm. The negative ions are responsible for smoothing your hair strands, reducing frizz.

You can make the best out of this technology using a Keratin hair straightener. The ions, rich in protein, work faster on your hair than traditional ionic hair straighteners since your scalp absorbs the protein for quick healing.

Working only on strands, ionic hair straighteners without protein infusion cannot smooth down your hard to tame hair strands as fast as Keratin hair straighteners.

So you’ll be glad to have this feature in your straightener for quicker results.

Smart Moisture Adjustment

Keratin flat irons boast moisture detection and locking functionality. It’s an important feature for proper nutrition of your hair and precise hair straightening.

When you apply heat to your hair using a regular straightener that lacks such functionality, it heats your hair regardless of your hair’s existing moisture.

So, if your hair happens to be moistened already, the possibility of burning your hair will be there if you do not adjust the temperature properly.

Moreover, even if it doesn’t burn your hair, the natural moisture can be lost, resulting in hard to recover rough and dull hair.

On the other hand, Keratin hair straighteners, with the moisture detection and locking technology along with the temperature auto-lock feature, detect the moisture of your hair.

It then makes sure your hair gets the precise amount of heat and protein infusion required for your hair.

As a result, there remains no risk of burns nor the risk of an overly dampened look. Besides, straightening becomes a lot easier.

Temperature Adjustment and Auto-lock

This is a must-have feature for a good protein infusion flat iron. With this feature, a Keratin infused flat iron ensures your hair gets the proper heating without the risk of burns.

This ancillary feature to the smart moisture adjustment system detects and locks the necessary heat to seal the required moisture.

If your protein-infused iron lacks this feature, your hair might not get the proper moisture adjustment, which can negatively affect its health.

So a temperature setting higher than necessary can burn your hair, and a lower setting can disrupt the moisture levels. Thus, both are harmful to your hair.

Quick Heating

These hair straighteners heat up quicker than every other hair straightener type. It’s an essential feature to have for quick styling.

However, for a protein-infused flat iron, the feature is even more important.

If your Keratin iron takes longer to heat up, the infused protein ions start evaporating. This can deplete the protein infusion faster over time. A quick heating iron will give it a longer lifespan.

Plate Protectors

Keratin flat irons come with delicate plates that get easily damaged if not stored securely.

The shock-sensitive plates break easily. Besides, dust which mars the infused micro-conditioners undermining their effectiveness if you leave the plates in open air for too long.

Therefore, it’s important for your flat iron to have plate protectors, so the plates remain secured when not in use.

It’s a trait every top flat iron possesses. They either come with hinge locks or protective sleeves, or both.

The sleeves come in really handy as a quick storage solution for hot plates when you’re in a hurry.

These protectors secure the plates from unwanted scratches, breakage, and preserve the infused protein micro conditioner’s effectiveness. Besides, they spare you a headache while traveling.

Features to Look Out For

Before you purchase a Keratin infused flat iron, don’t forget to compare the key features. The below chart shows the vital features your flat iron should have.

Properties	Characteristics
Plate Material	Ceramic, Ceramic Tourmaline, Titanium, or Titanium Tourmaline
Smart Moisture Adjustment	Must Include
Adjustable Temperature	300-450℉
Temperature Auto-lock	Must Include
Heating Time	Maximum of 20 Seconds
Ionic Technology	Must Include
Floating Plates	Must Include
Plate Protectors	Must Include

READ MORE: Keratin Bonded Hair Extensions: Know The Pros & Cons

A Few Tips From Our Experts

As I mentioned before, styling your hair with a Keratin flat iron is “almost” similar to having a Keratin treatment at home. But again, it’s not quite the same solution.

Here are a few more tips I picked up from experts about how to keratin treated hair.

• Avoid washing your hair frequently.
• Use shampoo free of sodium Laureth sulfate or sodium lauryl sulfate.
• Never forget to blow dry your hair after each shower.
• Avoid hair supplements after the initial shampoo.
• Avoid touching your hair excessively, as this can make it greasy.
• Lessen the use of hair clips. Avoid ponytails and braids.
• Sleep on a silk pillowcase instead of cotton.

READ MORE: How Long Do Keratin Treatments Last?

FAQs

Final Words

The latest trend for Brazilian blowouts is surely a tempting one, and so is the idea of having it done by a professional.

While this temptation can cost you a lot, the best keratin hair straightener can be a big money saver in the longer term.

Now you know how they work, why you need one, and what will suit you best. So, make your selection wisely. Let’s take one more look at my winner.

Resources

• 1. Keratin: Protein, Structure, Benefits, Uses & Risks [Internet]. Cleveland Clinic. Available from: https://my.clevelandclinic.org/health/body/23204-keratin
• 2. The Real Difference Between Ceramic And Titanium Flat Irons Is This [Internet]. The Zoe Report. Available from: https://www.thezoereport.com/beauty/ceramic-vs-titanium-flat-irons-heres-what-top-stylists-prefer-31818258

Last update on 2022-12-16 / Affiliate links / Images from Amazon Product Advertising API