12 Best Flat Irons For Thick Hair – A Cosmetologist’s Top Picks Of 2023

Your thick hair exists for a reason; give it the style it stands for with these tools.

Reviewed by Lindsay Loo, Cosmetologist
Written by Medha Deb
Edited by Shiboli Chakraborti, Certified Skin Care Coach
Fact-checked by Arshiya Syeda  • 

Looking for the best flat iron for thick hair but not knowing which one to buy? Fret not, girls. We got your back. Our curated list of flat irons will save you the time and trouble of searching for one.

Getting straight hair has always been something all us ladies fancy a lot. But we also know that doing it often damages your hair or fry it, in the worst-case scenario! To avoid this burning disaster, you need a suitable flat iron at your side. These functional tools require the tiniest bit of effort with maximum results. If you haven’t bought one yet, scroll down to check them out!

Top PicksCheck Price
Best For Curly Hair: HSI Professional Glider
Price on Amazon
Price on Walmart
Best Lightweight Design: VANESSA Titanium Flat Iron Hair Straightener
Price on Amazon
Price on Walmart
Easy To Use: Easy To Use:Remington S9500 Pro 1″ Pearl Ceramic Flat Iron
Price on Amazon
Price on Walmart
Best Versatile: Kristin Ess Titanium Flat Iron
Price on Amazon
Price on Walmart
Best Travel-Friendly: xtava Professional Infrared Hair Straightener
Price on Amazon
Price on Walmart
Best For All Hair Types : Dyson Corrale Hair Straightener
Price on Amazon
Price on Walmart
Best For Curly Hair: Revlon Copper Smooth Hair Flat Iron
Price on Amazon
Best With Wide Plates: Hot Tools Signature Series Ceramic Digital Flat Iron
Price on Amazon
Price on Walmart
Best Smart Design : Hot Tools Pro Nano Ceramic Hair Straightener
Price on Amazon
Best With Multi Heat Settings: FURIDEN Hair Straightener And Curler
Price on Amazon

12 Best Flat Irons For Thick Hair

1. Best For Curly Hair: HSI Professional Glider

HSI Professional Ceramic Flat Iron Image: Hsi Professional

If you have curly or coarse hair, then this flat iron is your best bet. This professional-grade straightener is made from high-quality ceramic plates and uses 8 Heat Balance micro-sensors that glide through the hair smoothly, ensuring even heat distribution. The thick plates are made using ceramic and tourmaline crystal ion plates. The plates are designed with advanced technology to ensure you get that glass-like finish on your hair. It redefines the traditional straightener iron, locking in natural moisture and transforming frizzy hair, making it look sleek and shiny. The temperature can be adjusted to best suit your needs. If you want salon-quality straight hair, then this is the straightener to invest in.

Material: Ceramic Tourmaline, Ceramic | Hair Type: Curly | Shape: Rectangular


  • Tourmaline-infused ceramic-coated plates
  • Comes with a 1-year warranty
  • Offers frizz control by generating negative ions


  • No auto shut-off

Our Tester's Experience

"I enjoy using this straightener. It works great on my hair texture and love the glove to prevent burns. It smoothly straightens the locks with just one pass and the longevity is commendable. A solid choice if you value effectiveness and durability."

Why We Think It's Worth Buying

The overwhelming 35,236 positive reviews on Amazon show how popular this product is with happy users.

2. Best Lightweight Design: VANESSA Titanium Flat Iron Hair Straightener

Vanessa Professional Flat Iron Hair Straightener Image: Vanessa

This titanium flat iron hair straightener has damage-free plates and releases high levels of negative ions to give you smooth and silky hair by retaining hair moisture. It offers 11 temperature settings ranging from 265℉-450℉, easy to customize depending on your different hair type. It delivers heat to your hair consistently without frying it. The special titanium plates have been designed with ionic technology to create long-lasting and lustrous results. The human-factor engineered design lets you hold the straightener at ease and style effortlessly to get shiny, frizz-free hair.

Material: Titanium | Hair Type: All | Shape: Straight | Product Dimensions: 13.15 x 1.93 x 1.93 inches | Weight: 12 Ounces.


  •  Lightweight
  •  11 temperature settings
  •  Reduces frizz
  •  Heats well and spreads evenly
  •  Retains moisture


  •  Might pull hair

Our Tester's Experience

"This flat iron has swiftly become my go-to item. It not only straightens my natural hair in one go but also adds fantastic curls. It heats quickly, leaving my hair salon-like in record time. This is effective for both thick and textured hair. Its compact size adds to its charm, making it perfect for those with short hairstyles."

protip_icon Pro Tip
Many of us tend to overlook this step, but if you use heating tools on your hair, you really must use a heat protectant.

Why We Think It's Worth Buying

The product has more than 3,479 reviews claiming its efficacy.

3. Easy To Use: Easy To Use: Remington S9500 Pro 1″ Pearl Ceramic Flat Iron

Made with ceramic plates, this straightener is designed to cause less damage and frizz. The Crushed Pearl Infused Plates will ensure that in just one pass, your hair is silky and straight. It is perfect for all hair types and has ceramic floating plates making them easy to use. This iron heats up fast and has an auto shut-off making it an excellent investment for smooth results and sleek hairstyles.

Material: Ceramic | Hair Type: Frizzy | Shape: Straight | Batteries: A batteries required | Product Dimensions: 2.94 x 5 x 13.75 inches | Weight: 1 Pounds


  • Comes with auto shut-off
  • Heats up fast


  • Flat iron does not grip the hair

4. Best Versatile: Kristin Ess Titanium Flat Iron

Kristin Ess Hair 3-In-One Titanium Flat Iron Hair Straightener Image: Kristin Ess Hair

The Kristin Ess Titanium Flat Iron is a multi-purpose hair styling tool that can be used to straighten, wave, and curl thick hair. It has titanium plates that heat up quickly and allows for even heat distribution. It has four temperature presets ranging from 0°F to 440°F, a digital display, and an automatic shut-off feature. It has a rounded body that helps you create subtle curls easily on thick hair.

Color: White | Material: Titanium | Hair Type: Frizzy | Shape: Flat | Product Dimensions: 15.12 x 5.35 x 5.35 inches | Weight: 2 Pounds.


  • Versatile
  • Heats up quickly
  • Automatic shut-off feature
  • Rapid heat technology



Our Tester's Experience

"My thick wavy tresses found a friend in this easy-to-use straightener. What I love, is its ability to offer a sleek look to hair and create beautiful S-wave curls. It leaves my hair smooth and holds the curl all day. It's a bit of an investment, but given that it works better than previous ones I've tried, it's worth it. It actually cut my straightening time in half! Recommend it."

protip_icon Pro Tip
It is usually preferable to apply heat to somewhat damp hair as opposed to soaked hair because your hair is the most sensitive when it is wet.

Why We Think It's Worth Buying

This product is so liked by shoppers that it has gained over 138 great reviews on Amazon.

5. Best Travel-Friendly: xtava Professional Infrared Hair Straightener

When it comes to hair woes, it’s best to trust the most modern solution, and this straightener is truly an answer to all your prayers. Its 2-inch wide, ceramic tourmaline technology floating plates can glide through even the coarsest of hair, rendering it smooth and frizz-free. It has a heat-resistant travel case, and dual voltage, making it super travel-friendly. Designed with 90-second rapid heat up technology and an 8-foot long swivel cord, this straightener is functional and reliable.

Color: Black | Material: Ceramic Tourmaline | Hair Type: All | Shape: Flat


    • Has a 90-second rapid heat up technology
    • Has an 8-foot long swivel cord
    • Heats your hair from inside for long-lasting effects


  • Plates are placed close to where it should be held

Our Tester's Experience

"This flat iron suitable for my thick, long hair. It smoothes my hair easily. It has fast heat-up time and intuitive two-button controls. It's great for reaching ends. Overall, a decent purchase."

6. Best For All Hair Types : Dyson Corrale Hair Straightener


The Dyson Corrale Hair Straightener is designed to deliver precise styling with less heat and less hair damage. This hair straightener employs flexing plates that adapt to your hair, perfectly grouping it after each pass. It has an intelligent heat control system, which regulates the temperature of the plates to prevent excessive heat damage on thick hair. With a cordless design, this hair straightener gives you the freedom to style your hair wherever you want.

Color: Black, Fuchsia Pink | Material: Metal | Hair Type: All | Batteries: 1 Lithium Ion batteries required


  • Portable
  • Reduces frizz
  • Intelligent heat control
  • Cordless design
  • Suitable for all hair types



7. Best For Curly Hair: Revlon Copper Smooth Hair Flat Iron


The Revlon Copper Smooth Hair Flat Iron is designed for all hair types. It has copper technology which helps it glide onto thick hair smoothly. The true-grip, rounded plates are engineered with advanced technology that can create curls or loose waves easily with minimal heat transfer and damage. It has a 10-second quick heating time and digital precise heat settings up to a professional-level 455 °F, making it suitable for achieving smooth, straight, and shiny styles in no time. The flat iron features a tangle-free swivel cord and 30 programmable digital LCD heat settings along with anti-static properties for total styling flexibility.


  • Reduced heat damage
  • Advanced copper technology
  • Suitable for all hair types
  • Quick heat-up time
  • Easy to use



Our Tester's Experience

"I've found this straightener to be a great tool for my thick, frizzy hair as it heats up instantly, efficiently tames my mane, and lasts the day. From heat control to avoiding hair snag, I've enjoyed using this product. Genuinely noteworthy."

8. Best With Wide Plates: Hot Tools Signature Series Ceramic Digital Flat Iron

This flat iron features ceramic technology that gives you flawless styling by taming frizz and reducing shine. It heats up to 450°F in just 30 seconds, meeting the fast styling needs of various hair textures and types. The iron has 1 1/2 inches wide plates, suitable to style longer sections of hair faster. In addition, the dual voltage of this iron makes it a perfect carry-on while traveling so that you can get sleek and shiny hair wherever you go.


  •  Heats up in 30 seconds
  •  Wide plates to style longer sections of hair faster
  •  Reduces frizz and adds shine
  •  Auto shut off feature


  •  The heat doesn’t last long

Our Tester's Experience

"The quick heating time and effectiveness of this flat iron impressed me. My hair is coarse and thick and the tool is suitability for both my hair and extensions. I believe I'll use it for a long time."

9. Best Smart Design: Hot Tools Pro Nano Ceramic Hair Straightener

Hot Tools Pro Nano Ceramic Hair Straightener Image: Hot Tools

The Hot Tools Pro Nano Ceramic Hair Straightener is designed to deliver shiny, frizz-free results. The nano ceramic technology helps to distribute heat evenly and offers damage prevention while delivering salon-worthy styles. It has wide plates with variable heat settings, making it ideal to create different styles on thick hair. It also has a unique heat memory technology that remembers your most recent temperature, making it simple to use. It has a tangle-free swivel cord along with a locking switch, which makes it easy to travel with and store in compact spaces.


  • Free-free hair
  • Compact and lightweight
  • Suitable for all hair types and lengths
  • Easy to use
  • Convenient for storage
  • Portable



Our Tester's Experience

"I enjoyed this straightener quite a lot. It's perfect for my thick hair, effortlessly gliding over the strands. It heats up in no time. It's robust and swift. Overall, a delightful tool. A must-try!"

10. Best With Multi Heat Settings: FURIDEN Hair Straightener And Curler

Hair Straightener and Curler 2 in 1 Image: Furiden

If you want an iron that has a wide variety of settings to choose from, then this is the one for you. It comes with 20 heat settings. It takes only 15 seconds to heat up, thereby saving you loads of time. The plates are made from ultra-smooth mirror titanium, which is the best for when straightening coarse, curly, or coily hair.

Hair Type: All | Material: Tourmaline | Shape: Flat | Product Dimensions: 11.61 x 1.46 x 1.46 inches | Weight: 1 Pounds


  • Ultra-smooth titanium plates. ‘
  • Plates retain moisture
  • 20 heat settings


  • Hard to create tight curls using this iron

Our Tester's Experience

"This straightener is fast-heating and has easy heat adjustment settings. It's lightweight and flawlessly straightens my hair and leaves it lustrous. I also use it for curling, and adding volume. Works well."

11. Best For Wet Hair: Rosily Stylish Iron Plus Flat Iron

Rosily Stylish Iron Plus Hair Straightener Image: Rosily

This stylish flat iron comes with innovative vents that channel steam, making them the perfect iron to use on dry and wet hair. With this design, you no longer have to wait for your hair to dry to start styling it. Instead, you can towel dry it and immediately start styling it with this iron. It is built using smooth titanium plates that help conduct heat to your hair and resist corrosion. With 5 different temperature controls, this iron is perfect for those mornings when you are running late as it saves time and is flexible.

Color: Pearl White - 1.75'' Plate | Material: Ceramic | Hair Type: Dry | Shape: Flat | Product Dimensions: 4.72 x 1.57 x 0.01 inches | Weight: 1.43 Pounds.


  • Unique steam vents
  • Adjustable temperature settings


  • Does not grip hair very well

Our Tester's Experience

"The hair straightener does an excellent job at making my coarse, wavy hair silky-straight and shiny. It's lightweight and swift and comes with a long cord. It's practical and functional for daily use and makes my hair look great in minutes."

12. Best Dual Voltage: CHI Ceramic Hairstyling Iron

The CHI Original Digital Ceramic Hairstyling Iron has a professional-grade salon model and dual voltage system for convenient usage while you travel. It has a 1-inch ceramic plate and features a multipurpose, ergonomic design and cutting-edge ceramic technology. The ceramic heater of the iron is designed with advanced technology that heats it up in just 60 seconds. The iron helps you achieve silky, lustrous, and frizz-free hair with minimal heat damage. It also includes a 1-hour auto shut-off feature.


  • Travel friendly
  • Offers heat protection
  • Offers versatile styling options
  • Auto shut-off feature
  • Easy to use


  • Slightly expensive

Our Tester's Experience

"This flat iron has been a dependable choice. It heats quickly and has a long cord. It doesn't damage my thick, colored hair, especially with a heat protectant. Best for tackling persistent flyaways. Good decision overall."

Now that we have seen the 12 best straighteners in the market, we will understand how you must choose the product that is best suited to your needs.

How To Straighten Thick Hair With Flat Iron

Here is a guide to straightening your hair using a flat iron:

Step 1: Comb your hair out and divide it into sections (1:13)

Step 2: Heat the iron up to the desired temperature, depending on the hair texture (0:41)

Step 3: Apply a heat resistant spray if you like, as this can prevent excessive damage to your hair (1:33)

Step 4: Starting from the crown, move the iron in a fluid downwards motion (2:53)

Step 5: Move onto the next section and continue this until all your hair is straightened (4:56)

Once you are done, you could use some hairspray over the length of your hair. This helps maintain the styling for a longer period.

Flat Iron For Thick Hair-Buying Guide

We understand how confusing it can be when choosing a flat iron. Here is a list of a few things you should keep in mind before purchasing one:

  • Temperature for thick hair

Usually, the temperature needs to be set between 350-400°F.

  • Right plates

Ceramic: Less damaging to the hair. Heats up from the inside.

Titanium: Heats up faster, and the outside heats up first.

  • Plate size for thick hair

Choose a plate that is wide and can hold more hair if you have thick hair.

  • Technology:

Make sure that the technology used to design the straightener is one that allows heat to be distributed evenly.

  • Temperature Range:

Ensure the straightener has many temperature controls and can be adjusted for preference.

Other factors that you must consider:

  • Grip: Ensure the iron is easy to hold onto and will not slip.
  • Weight: Should not be uncomfortably heavy and as lightweight as possible, so it is easy to carry around.
  • Auto turn-off: Must have this feature, wherein it shuts off automatically if not used for a while.

What Safety Features Should A Flat Iron Have?

A flat iron should have Instant Heat Recovery System, auto shut-off, and dual voltage as these features make it reliable and highly functional for daily use. Lindsay Loo, an expert cosmetologist reminds you in this context, “Always use a heat protectant that is formulated for flat ironing your hair. This will help maintain your hair health while you rock a fabulous style.”

Infographic: Mistakes To Avoid While Using A Flat Iron For Thick Hair

Straightening thick hair with a flat iron can be a daunting task. You may be tempted to skip a few guidelines to get quicker results. This may end up damaging your hair and making it more difficult to manage. The infographic below covers some common mistakes that you should avoid to get pin-straight hair without damaging your tresses. Check it out!

Mistakes To Avoid While Using A Flat Iron For Thick Hair (infographic)

Illustration: StyleCraze Design Team

Save the high-quality PDF version on your device now.

Download Infographic in PDF version Download Infographic
Download Infographic in PDF version

The Bottom Line

Thick hair appears voluminous and makes you look like a diva. But it also requires special styling tools and hair care products to stay healthy and damage-free. This hair type needs special flat irons with adjustable temperature settings and ceramic or titanium plates to minimize the damage. For example, the HSI Professional Glider comes with tourmaline crystal ion plates, the xtava Professional Infrared Hair Straightener has ceramic tourmaline floating plates, and the Revlon Copper Smooth Hair Flat Iron has copper ceramic plates. In addition, these flat irons help retain moisture and minimize frizz. You should consider investing in expert-recommended flat irons that come with wide plates to hold more hair and allow even heat distribution. However, you should avoid products with no auto shut-off features as there could be a risk of scalding. You can always read through honest unbiased reviews of the irons online before purchasing one to make an informed decision.

Why Trust StyleCraze?

Medha Deb, the author of this article, is a hair care enthusiast and loves writing comprehensive articles on the same. She conducted in-depth research about the best flat irons for thick hair by carefully analyzing online user reviews. Thick hair needs special flat irons that won’t damage the hair and control the frizz. The products listed above come with uniquely designed hair plates that boost shine and make your tresses look healthy and gorgeous.

Frequently Asked Questions

How often should I clean my flat iron?

You should clean it once a month.

Do you need to use a protective glove when operating a flat iron?

Using a glove is a great way to prevent scalding and accidental burns.

How should I choose my flat irons?

You should choose a flat iron based on your needs and the features it has. You must also factor the technology used in designing the plates and the temperature range it offers.

What is the difference between ceramic and non-ceramic plates?

The difference between the two is that ceramic plates heat from the inside, while non-ceramic plates heat up from the outside.

What products should I use to flat iron my thick hair?

Any of the flat irons mentioned above will do an exceptional job at straightening curly hair.

Will I damage my hair if I use a flat iron every day?

Yes, it can do serious damage to your locks as the heat can cause thinning of hair, split ends, etc.

Can I use a flat iron to do different styles?

If the iron is designed to double up as a curler, then yes, you can use it to style your hair differently.

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