July 27, 2022

Best Flat Irons for Hair Extensions

Best flat iron for hair extensions

Table of Contents

This is a review of the best flat irons for hair extensions in 2023.

Hello hair lover! Flat irons are great tools to use in styling your hair extensions, and it often gives your extensions that silky, flawless, and glamorous look.

I’m Tee, a big lover of everything wigs and hair extensions. I took a styling class 2 years ago, which gave me in-depth knowledge of the best flat irons. In this article, I’ll share this knowledge with you.

If you’d like a flat iron that gives you all the premium features a flat iron should have, then the HSI Professional Glider Ceramic Flat Iron should be top of your list. It’s the best overall.

Reassuringly, I’ll also talk about other flat irons, so you have a variety to choose from. Come along!

Quick Summary

4 Best Flat Irons for Hair Extensions – Our Top Picks

Let’s jump into the review of these flat irons. 

HSI Professional Glider Ceramic Flat Iron

  • Key Features: Tourmaline-infused ceramic plates, eight micro-sensors with heat-balance technology, wide temperature range, 110/220 worldwide dual voltage, 360° swivel cord, 1-inch plate width
  • Color: Black
  • Material: Ceramic
  • Best For: Overall

The HSI Ceramic Flat Iron is designed with tourmaline-infused ceramic plates, which generate negative ions and allow smaller water molecules to penetrate the hair shaft to reduce frizz and static. The floating plates also give the flexibility to flip, curl or straighten your hair.

Eight micro-sensors with heat balance technology are used to evenly distribute heat and regulate the temperature so you spend less time applying heat, which in turn prevents your extensions from damage when styling. Additionally, the 1-inch plate width is wide enough for any hair length, yet narrow enough to style your bangs, if any.

This flat iron has a temperature range from 140°F up to 450°F, giving you total control to choose the optimum temperature for your hair type. With the 110/220 worldwide dual voltage, you can use the iron anywhere in the world. 

However, this flat iron doesn’t have an auto shut-off. You would have to do it manually.

Bekind Apex 2-in-1 Flat Iron

  • Key Features: Apex floating plates, rounded design, PTC heating technology, temperature memory, auto power-off, lightweight design, 
  • Color: Galaxy gray
  • Material Used: Ceramic and aluminum
  • Best For: Multipurpose use

BeKind Apex flat iron has the heat memory function, which heats up automatically to the exact temperature you used last time, and during every next use. This helps you save time and cuts the hassle.

With the Apex floating plates design, there is zero chance of hair tugging while styling your hair. This helps you to achieve perfectly shaped hair. While the flat iron smooths and shapes, the intelligent combination of aluminum plates and floating technology promotes unprecedented conditioning. 

Also, this flat iron has the newest PTC heating technology that provides constant and stable heat and takes less time than others to style your hair effectively and safely without damage.

However, a con of this flat iron is that the temperature can get way hotter than it says it will. It may fry your extension if you’re not extra careful.

Vanessa Titanium Flat Iron

  • Key Features: Long plate, 15s fast heating, automatic shut-off, dual voltage, 360°97 inch swivel cord, invisible screen, human-factor engineered shape
  • Color: Black
  • Material: Titanium
  • Best For: Thick and voluminous hair extensions

The titanium plate of this flat iron provides faster straightening and increased shine, with high levels of negative ions to produce silky, smooth, and conditioned hair. This plate helps retain moisture and enhances your hair extensions long-term.

The invisible screen of this flat iron makes your desired temperature visible and has different temperature settings (265℉-450℉). It heats very fast within 15s and evenly distributes heat while retaining moisture. This makes it an excellent fit for thick and coarse hair.

The human-factor engineering designed shape of this flat iron helps you relax your arm when in use, which is great if the hair is lengthy. 

Although, you may find the space between the plates too big if you’re trying to straighten small hair pieces.

BaBylissPRO Ultra-Thin Straightening Iron

  • Key Features: Slim design, extra-long 5″ plates, ceramic heater, 50 heat settings, ultra-smooth titanium plates
  • Color: Blue
  • Material: Titanium
  • Best For: Thin extensions

The ultra-smooth titanium plates conduct ultra-high heat and resist corrosion. This makes it suitable when using very high temperatures.

This flat iron has a slim design that helps eliminate hand fatigue, while making it exceptionally lightweight and easy to work with. This increases styling flexibility. 

The extra-long 5″ plates reach up to 450℉ and allow for wider sections to be straightened, thereby boosting speed and effectiveness.

However, this flat iron is a bit expensive. You may want other alternatives if you’re seeking flat irons below $100. Also, the plates are not close enough for a true silk press or thorough straightening. This makes it suitable for thin hair extensions and not curly virgin afro thick textures.

What to Consider?

Here’s what you should look out for in a flat iron before buying

Temperature Control

Always ensure that whatever flat iron you intend to get has temperature control. You don’t want to just ‘freestyle’ the heat level, because that could damage your extensions. This is especially important for synthetic extensions because human hair extensions can still withstand some degree of heat. 

Material Used

Also, note the material used for the flat iron. Materials like titanium or ceramic are excellent because they conduct electricity well, and won’t heat up outside the surface. However, those made with metal on the interior and exterior may always radiate heat on the outside, and that could be uncomfortable.

Automatic Shut-offs or Regulator

This feature in flat irons will enable its durability. Flat irons with automatic shut-offs have a way of detecting when the iron is in use or not. So even when you’re carried away with after-styling paparazzi, the flat iron automatically puts itself off. This enables longevity.


Here are some commonly asked questions relating to flat irons for hair extensions and their quick answers.

Is ceramic or titanium better for hair extensions?

Choose a ceramic flat iron for soft, thin, colored, and straight hair extensions because it is gentler than a titanium flat iron. A titanium flat iron will heat up immediately and is great for styling thick hair extensions.

Can you use a flat iron on hair extensions?

Yes, you can use a flat iron on hair extensions, except non-heat resistant synthetic hair extensions. Just you want to style your hair extensions gently with low heat so it will cause less damage to the hair.

Also, avoid the root of the hair extensions so it will not damage the adhesives.

How is silk Press different from flat iron?

A flat iron is the tool you use to style your hair, while silk press is a technique to use a flat iron, most of the time, this technique is used in salons.

Wrapping Up

That brings us to the end of this review. I hope you’re now better informed on the great flat irons to use. In my opinion, the HSI Professional Glider Ceramic Flat Iron is still a great buy. Regardless, do let us know whichever one you settle for, in the comment section below!


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