Best HSI Flat Irons of 2020 – Ultimate Buyer’s Guide

| Last Updated: January 22, 2022

You may see a lot of hairstyles, but sleek and shiny straight hair will never go out of style.

Women who are fond of straight hair look for options and tools to achieve those dead straight locks.

Frizzy and stubborn hair also has a solution. Buying a good flat iron will help you solve that problem, and who better to trust than HSI?

Comparison of the Best HSI Flat Irons

  • Temperature range of 140-450°F
  • Ceramic plates with heat technology
  • Dual voltage feature allows it to work in different regions
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  • Features a far infrared technology
  • Comes with ceramic tourmaline plates
  • Versatile tool that helps to make different hairstyles
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  • Best for the money
  • Mini flat iron for easy portability
  • Eight micro-sensors of heat balance
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  • Best HIS ceramic flat iron
  • Comes with a steam dispenser
  • HSI provides a style guide with it
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Who is HSI?

HSI is a Miami-based company that strives to deliver quality hair styling tools. Its additional features have marked its customer care and excellence over its competitors. The company operates in more than 47 countries and offers a wide array of hair products. It primarily serves hair salons with its excellent products.

HSI has been operating on international standards so their customers may attain the best standards within no time. Products made by this company provide you with lustrous and glossy hair. No more will you face hair concerns like frizz and dullness. 

How Does HSI Compare to the Competition?

Many things mark the excellence and uniqueness of this company over its competitors. HSI has a lot of remarkable features that its competitors do not possess:


The price of these flat irons is affordable and absolutely worth what you pay for. These flat irons, because of their shape and design, work well for all types and textures of hair. You are not just confined to having a straight hairstyle. You can even enjoy curly and wavy hair as the company’s flat irons are two-in-one products, comprising both curler and straightener. Getting both for a single price is nothing less than a wonder. 

Additional Features

This company also offers heat-resistant gloves, an HSI styling guide, and an argan oil sample with its products. This protection treatment of argan oil not only protects your hair but also shows the love and affection of the company for its buyers. The heat-resistant gloves protect your hands too. 

Review of the Best HSI Flat Irons

Let us have a look at our detailed reviews of the best HSI flat irons of HSI, which are well known for their excellent results. There’s no doubt that any of these can serve individuals and provide a salon-like experience at home. 

Best Overall:
HSI Professional Glider Ceramic Tourmaline

HSI Professional Glider | Ceramic Tourmaline Ionic Flat Iron Hair Straightener | Straightens & Curls with Adjustable Temp | Incl Glove, Pouch, & Travel Size Argan Oil Hair Treatment | Packaging Varies


  • Dual voltage of 110v-220v
  • Comes with heat resistant gloves
  • Ceramic plates are easily changeable
  • Swivel cord can rotate up to 360 degrees
  • Ceramic plates with the tourmaline infused 


  • Shuts itself off automatically 
  • Automatically reheats itself 
  • Damages the hair and makes the ends rough

What Recent Buyers Report

The majority of buyers were very happy and satisfied with the results of this flat straightener. They reported that their hair was straightened after just using it twice. The texture and the type of hair do not matter much, as its results will be equally good. The HSI Professional Glider Ceramic Tourmaline takes care of the hair of its buyers.

Why it Stands Out to Us

This hair styling tool is an all-in-one as you can style your hair in any way you want. It is a curling iron as well as a straightener that may curl, straighten, or flip your hair in whatever way you desire. The styling tool has flexible plates that make styling an easier task. Moreover, it is made of ceramic, which makes sure your hair is straightened after the even distribution of heat. The ionic technology removes the frizz from your hair. 

Who Will Use This Most

This straightener can be easily used by travelers and hair stylists who have to travel because it is easy to carry and convenient to use. You should plan to have one if you fall into this category. It has a dual voltage feature to use the appliance wherever you want. The swivel cord also favors usage by professionals because of its great flexibility. It does not get tangled or damaged during usage. Plus, the beautiful silk case makes its transportation much easier. 

Bottom Line

The excellent features and outstanding performance of the HSI Professional Glider Ceramic Tourmaline help it to excel against its competitors. It lets you have various hairstyles without damaging your hair. It is a must-buy if you wish to have an all-in-one hair styling tool. The argan oil that comes with it helps to protect your hair from further damage. 

HSI Professional Ceramic Tourmaline Ionic Flat Iron

HSI Professional Ceramic Tourmaline Ionic Flat Iron, With Travel Size Argan Oil Leave In Hair Treatment, Worldwide Dual Voltage 110v-220v


  • Comes with dual voltage technology
  • Adjustable temperature range from 240F-410F
  • Argan oil is included as a complementary bonus
  • Round body design helps in curling styles and unique flips
  • Floating plates adjust automatically to the type and thickness of your hair


  • Straightener cannot be closed while it is not in use 
  • On/off switch is beside the plates, which can lead to safety issues

What Recent Buyers Report

The majority of recent buyers felt satisfied with the HSI Professional Ceramic Tourmaline Ionic Flat Iron. All of its features are exactly what you've been dreaming of. It straightens hair in no time and allows you to style your hair in a number of different ways in order to keep up with ever-changing hairstyles. 

Why it Stands Out to Us

You must have come across tourmaline crystals. They are the latest cutting edge tech in hair styling tools and are much more effective than any other material. This product is a second generation flat iron designed with ceramic plates to ensure even distribution of heat. The advanced infrared heat technology, along with negative ions, reduces frizz and static effects in the hair. The small water molecules penetrate inside the hair shaft for more effective results. The design is made keeping in mind durability and long-lasting results. Your hair can be controlled well during styling without risk of snagging. 

Who Will Use This Most

This flat iron is best for people with coarse and thick hair. However, this excellent tool is not restricted to servicing only one hair type; it can be easily used by people of any hair type and texture. This flat iron can also be an asset for travelers who have to contend with different varieties of voltage while traveling. 

Bottom Line

This beauty accessory is essential, particularly for those of you who are looking for exceptional flat irons. This versatile appliance transforms your frizzy and dull hair into glossy and straight hair. Its ionic system, along with its ceramic plates, provides you with hydrated and glossy hair. The smart technology is smart enough to penetrate deep inside your hair and help you maintain your looks and attitude. 

Best for the Money:
HSI Professional Glider Mini 0.5" Flat Iron

HSI Professional Glider Mini 0.5' Flat Iron - Small, Lightweight & Portable Travel Size Straightening Iron - Quick & Easy Hair Design & Enhancement for Men & Women


  • Travel-friendly size
  • Heat is distributed evenly due to ceramic plates. 
  • Dual voltage feature to facilitate traveling internationally
  • Hair damage is reduced because of ceramic plates with eight microsensors
  • Tourmaline infused ceramic plates to produce negative ions


  • No multiple heat settings
  • No automatic shut off
  • On/ off button is inside the iron

What Recent Buyers Report

According to the reports of recent buyers, the HSI Professional Glider Mini 0.5" Flat Iron has been a favorite choice due to its remarkable features. It is a complete package offered at a nominal price. It straightens your hair, curls them, or flips them up with its safe ceramic plates. Despite being mini, it has worked equally well as a professional flat iron. 

Why it Stands Out to Us

Nobody can deny its compact and convenient size, which is small enough for easy portability. It has ceramic plates infused with the latest technology. The swivel cord, dual voltage, and ceramic tourmaline plates make it the best choice in a limited budget. Eight sensors are used for ensuring an even heating system, making it great for those with damaged hair as well. 

Who Will Use This Most

Its compact size is favorable for tourists and travelers. Actors, actresses, models, and others in show business can also carry it along on their trips. Its size is ideal for traveling and fitting into luggage without fear of being heavy. This flat iron has a dual-voltage feature too, which makes international traveling less of a hassle. 

Bottom Line

This mini glider flat iron has changeable plates that ensure you can make various hairstyles. Don't be concerned by its low price; you don’t need to worry about its performance. Sleek hair is easily doable because of its ceramic plates infused with tourmaline. The temperature is regulated, and even distribution of heat ensures fewer passes. 

Best HSI Professional Flat Iron:
HSI Professional The Glider Titanium Hairstyling Flat Iron

HSI Professional | The Glider Titanium Hairstyling Flat Iron | Tourmaline Ionic Hair Straightener | Straightens & Curls with Adjustable Temp | Incl Glove, Pouch, & Travel Size Argan Oil Hair Treatment


  • Heating range of 200F-450F
  • Travel size argan oil is also available for hair care
  • Coarse and curly hair is straightened with less effort
  • Heat-resistant glove and pouch are included with the tool 
  • Heats up instantly when the power button is held for 3 seconds only


  • No automatic shut off
  • No LCD to display the heating temperature
  • Power button has to be pressed for heating it

What Recent Buyers Report

According to the recent buyers, this product has been idealized for its effective results in the form of sleek, shiny, and healthy hair. The microsensors ensure long-lasting results in no time. It offers a great variation of the temperature range to straighten hair quickly and effectively. The dual voltage functionality makes it possible to use everywhere easily. 

Why it Stands Out to Us

The HSI Professional The Glider Titanium Hairstyling Flat Iron has a plate width of 1.25 inches, which is ideal for thicker shafts of hair. It is favorable for not only straightening but also other intricate hairstyles. This is because of its curved edge, which can curl and flip your hair. Your tresses are gently smoothened without any damage. 

Who Will Use This Most

This appliance is ideal for women of any age and with any hair texture or hair type. It can style your hair without a problem to give you a new look. Frequent travelers might also find it favorable because its dual voltage feature allows you to use it internationally.  

Bottom Line

This flat iron is a multipurpose tool that can serve you in many ways. You don’t need to carry a curler and flat iron separately anymore. It is ideal for all hair types and textures, even thin hair. Thus, with this, there’s no need to settle for frizzy and stubborn hair anymore. 

Best HSI Ceramic Flat Iron:
HSI Professional Glider Steamer Ceramic Flat Iron

HSI Professional Glider Steamer Ceramic Flat Iron | Dispenses Argan Oil Infused Steam, Added Moisture & Thermal Protection | Tourmaline Ionic Hair Straightener


  • Effective for wavy hair
  • Beautifully designed
  • Steamer spray includes argan oil 
  • Straightens hair is not much time
  • Heats up to 450°F for quick straightening 


  • Argan oil is a one-time investment 
  • Offers a warranty for one year only
  • Does not have an automatic shut off system

What Recent Buyers Report

Recent buyers have praised this flat iron as a truly fabulous product. It comes with an argan oil infused steamer that provides nourishment to your hair while straightening. Along with that, it can easily tackle and straighten wavy hair as well. 

Why it Stands Out to Us

This product is successful in replenishing, repairing, and smoothening damaged hair. We find it amazing because of the additional features present inside the package, such as heat-resistant gloves, HSI guide, and argan oil. Customer satisfaction is the major key, so only high-end materials are used in its manufacture. 

Who Will Use This Most

As indicated by its name, the HSI Professional Glider Steamer Ceramic Flat Iron is particularly intended for professionals and salons. It is designed to meet the needs of all hair textures and can be used for all purposes; one need not to carry every hair styling tool separately. It should be noted, however, that curly hair will require multiple applications. 

Bottom Line

To conclude, you could say that this is an all-in-one solution. Its accessories, durability, and outstanding performance make it a standout product. Safe and quick styling is no longer a difficult task. You can enjoy sleek and glossy hair with ease and comfort with this tool in your styling arsenal.

Cautious Considerations to Keep in Mind

There are many irons available on the market with varying prices and varying degrees of performance. Keep in mind that you need to consider a few aspects to select the right iron from the wide array of options.


The primary thing to consider is ceramic plates. In most cases, ceramic plates that are offered in the flat iron are just coated versions and fade away or chip out after some time. Such a ceramic plate will greatly harm your hair and make them look dull and brittle. Thus, ceramic plates need to be original, so they can easily and evenly distribute the heat. This will create no heat spots that can damage your hair.

Automatic Shutoff

Your heating irons must have automatic shutoff that can save your appliances from heating to dangerous temperatures when they are not in use. It is a necessary safety measure taken by companies so that appliances shut off when they are not in use. 


Flat irons by HSI are exceptionally outstanding products. They offer durability as well as additional features in order to provide excellent care for their customers’ hair. The results provided by HSI’s hairstyling tools speak to the company's deep commitment to great quality. One of the HSI straighteners reviewed above could do wonders for your hair. 

People Also Ask

People may feel curious regarding these products and their features. They want to know more so that they are satisfied with their selection and purchase. If you too want to know more, have a look at these frequently asked questions.

Do HSI Straighteners Turn Off Automatically?

HSI’s tourmaline flat irons come equipped with the automatic turn-off feature, which is added as an additional safety feature. 

Does a Flat Iron Damage Hair?

The simple answer to this is yes. It’s entirely possible for a flat iron to damage hair. However, that’s only possible if it is used excessively. Of course, with high heat, hair is bound to get damaged. One way around this is to use a heat-protectant spray

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Hi I'm Emilia! I like to think of myself as the "crash-test-dummy" of the hair world. Whether that means testing out the newest curling iron or going with fresh hair styles. I like to mix it up. I share my thoughts on Caffe Hair based on my first hand experience!