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HSI Professional Flat Iron Review

$149.99 $54.99 Add to cart

We love this HSI Professional flat iron- so much so that we voted it onto our Best Flat Iron of 2017 list. The HSI Professional flat iron is a great option for transforming your frizzy and dull hair into straight and sleek hair. Besides straightening, it can also beautifully curl and flip hair. With a swivel cord and extremely quick heating, the straightener provides great style without taking too much time or making a mess. It features easier grip with ergonomic design for holding it easily as well as versatile heat setting to allow you to be in total control of all your hair styling needs.

HSI Professional Flat Iron
8.5 Our Score
  • Heats up fast
  • 7 foot swivel cord
  • great value
  • global voltage
  • No automatic shutoff
  • no digital readout
  • Some users find the handle gets hot
The HSI Pofessional flat iron is an insane value- salon quality features at a drug store price
Temp. Range7

About the HSI Professional Flat Iron

HSI Professional Ceramic Tourmaline Ionic Flat Iron Hair Straightener Hair Straightening Reviews best flat iron 2017The HSI Professional hair straightener is made up of hundred percent pure ceramic plates that are infused with tourmaline, which is why it has better heat diffusion and will not chip, peel or crack. Tourmaline is a crushed crystal that emits a lot of infrared heat that is healthy and safe for your hair. The HSI Professional Flat Iron has optional temperatures between 240 and 400 degrees Fahrenheit, which gives it salon-level coverage for almost all types of hair, including fine and coarse as well as thin and thick. It can reach the maximum temperature in only a few seconds so that the user does not have to wait for long.

It features one-inch solid ceramic tourmaline plates with curved edges to make it easy to curl or flip your hair at the bottom. The width of the plates is what makes it suitable for most lengths of hair, including bangs. For easy styling, the flat iron comes with a swivel cord and has a round body shape to make the curls look natural.

Being one of the best straighteners on the market, the HSI professional flat iron iron is ideal for very hard-to-straighten and easily damaged hair, such as Asian and African-American hair. These hair types are more likely to lose moisture and become more damaged by heat because of their porosity. Thanks to the iron’s high-quality materials along with the wide temperature range, it is able to deal with hair that many other straighteners will only damage or cannot straighten at all.

It is a worldwide dual voltage flat iron, making it suitable for travel or as a present for someone who lives overseas. The hair straightener comes with a small bottle of argan oil leave-in hair treatment, which is great for helping recover dry and damaged hair. Also included in the packaging is a heat glove to protect your hand and make the ironing comfortable and easy. There’s also a protective pouch for convenient transport and storage. This pouch is insulated and can trap the heat inside to make sure once it is unplugged, no harm is done to anyone who might pick it up when it is cooling.

HSI Professional Flat Iron Specifications

  • One-inch solid ceramic tourmaline plates with advanced HeatBalance infrared technology
  • Includes argan oil leave-in-hair treatment to help protect and smoothen tresses
  • Adjustable temperature from 240 to 400 degrees Fahrenheit)
  • The reflexive floating plates heat up in seconds
  • Suitable for all types of hair
  • Comes with a 360-degree swivel cord
  • Worldwide dual voltage compatibility with 110 to 220 volts
  • Can be used to straighten, flip, and curl fine to coarse hair
  • Ceramic tourmaline ion plates create a silkier and shinier finish in less time
  • Plates are wide enough for any type and length of hair and narrow enough for bangs
  • Can transform frizzy and dull hair into gorgeously straight and sleek locks
  • Includes a glove and a pouch
  • Packaging can come in either red or white color
  • Comes with a one-year warranty

Pros and Cons of the HSI Professional Flat Iron

HSI Professional Flat Iron Digital Ceramic Tourmaline Ionic Hair StraightenerThe flat iron comes with bonus products like hair oil treatment, glove, and pouch to make life easier when styling and when traveling with it. It features settings that are suitable for all types of hair and can be adjusted accordingly via the dial located on the inside of the handle. The swivel cord prevents the user from having to stop and straighten out the cord first while styling. It is seven feet in length, making it handy for travels as well as places where the power outlet is not next to the mirror.

You can smoothly glide it through your hair because of the smooth ceramic tourmaline plates. The light indicator shows whether the rod is powered on and heated. Another great thing about the HSI straightener is that it does not leave a burnt smell on the hair and smooths frizz, giving your hair a shiny look and silky texture.

On the other hand, this flat iron does not come with a digital temperature gauge that makes it difficult to set the temperature perfectly. The dial is small enough not to be seen easily, and the grip is not very comfortable. Also, the straightener does not shut off automatically after a fixed amount of time, which means the user has to check all the time to make sure it is turned off and unplugged after use. Some people feel the handle of the HSI professional flat iron gets very hot to the touch when used at high temperatures, but that hasn’t been my experience.


The HSI Professional flat iron is one of the top-performing straighteners available on the market today that will offer excellent salon-quality straightening for users with any type and length of hair. It is powerful enough for coarse hair and gentle enough for fine hair without causing any damage to either hair types.

The customers who have bought the iron have many positive things to say about it. They liked how it smoothed their hair quickly and efficiently without ripping out any hair. It takes very little time to heat, and the user has full control on how hot they want it to be according to their hair type. The addition of heat protective glove along with a storage pouch made the styling very convenient.

With all its excellent features, the highly-recommended HSI Professional flat iron would be a welcome addition to any hair styling routine.

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