The Ultimate Guide to Testing Curling Irons for Short, Medium & Long Hair

Curling irons come in a wide variety of sizes, shapes, and technologies to help you achieve endless styles. With so many options on the market, it can be tricky to find the right curling iron for your hair length and texture. This comprehensive guide will walk you through how to test and compare curling irons specifically for short, medium length or long hair.


I. Introduction

II. Factors to Consider When Choosing a Curling Iron

  • Barrel size
  • Barrel shape
  • Temperature settings
  • Materials

III. Testing Curling Irons for Short Hair

  • Best barrel sizes
  • Ideal temperature range
  • Tips for styling short hair
  • Recommended curling irons

IV. Testing Curling Irons for Medium Length Hair

  • Ideal barrel sizes
  • Temperature guidance
  • Styling techniques for medium hair
  • Top-rated curling irons

V. Testing Curling Irons for Long Hair

  • Barrel size and shape
  • Adjusting temperature
  • Long hair styling tips
  • Leading curling iron models

VI. Safety Tips for Using Curling Irons

VII. Curling Iron Maintenance


IX. Conclusion


For salon-worthy curls at home, having the right curling iron for your hair length is key. The vast range of sizes, shapes and technologies among curling irons means testing different models is often necessary to find your perfect match. Factors like barrel size, adjustable heat settings, shape, and material make a surprising difference in achieving your desired curls or waves.

This guide will walk you through the key considerations when shopping for a curling iron for short, medium or long hair. You’ll learn insider tips and tricks for curling different lengths along with recommendations on which irons excel for short locks all the way down to luscious long strands. Let’s tackle your curling conundrums!

Factors to Consider When Choosing a Curling Iron

Before delving into recommendations for specific hair lengths, let’s review the main factors to evaluate when testing any curling iron.

Barrel Size

Barrel size largely determines the width and shape of curls you can achieve. The general guideline is:

  • 3/8″ – 1/2″ barrel for tight ringlets
  • 1″ barrel for defined corkscrew curls
  • 1 1⁄4” – 1 1⁄2” for loose curls and waves
  • 1 3⁄4” – 2” for beachy waves

The smaller the barrel diameter, the tighter the curl. Larger barrels usually create loose, textured waves rather than ringlet curls.

Barrel Shape

The barrel shape also affects the curl shape:

  • Straight: Defined spiral curls
  • Conical: Looser waves and curls from wide to narrow barrel
  • Oval: Fuller curls and volume
  • Triple/Double Barrel: Creates waves, flat curls or mermaid curls

Temperature Settings

Adjustable heat is a must for curling all hair types and lengths. Look for multiple heat settings ranging from 300°F – 450°F. This gives you control over the right temperature to avoid damage.

Lower heat suits fine, damaged or colored hair. Maximum heat is best for thick or coarse hair.


  • Ceramic, tourmaline and titanium barrels provide even heat distribution and less damage.
  • Chrome barrels get hot yet lack the protective properties of ceramic.
  • Teflon-coated barrels add a protective finish for smooth gliding.

Higher-end materials like ceramic and tourmaline cost more yet generally provide better styling results with less risk of heat damage.

Now that you know what specs to look for in a curling iron, let’s explore how to test models for short, medium and long hair specifically.

Testing Curling Irons for Short Hair

When your locks barely hit your chin or shoulders, you need a curling iron that can handle short lengths. Here are tips for choosing the best curling iron for short hair.

Best Barrel Sizes for Short Hair

Look for 3⁄8” to 3⁄4” barrels to create tight curls and ringlets. The small diameter lets you wrap sections of short hair easily. Conical barrels also work well starting around 1⁄2” then tapering to 1”.

Avoid barrels over 1” as these will be tricky for short strands. The exception is if you want loose, textured waves rather than defined curls.

Ideal Temperature Range for Short Hair

300°F to 360°F provides ample heat for curling short hair. Excessive high heat risks damage on delicate short strands.

Tips for Styling Short Hair with Curling Irons

  • Work in sections: Divide hair into 3-4 horizontal or vertical parts. Clip up other sections.
  • Use styling products like mousse for hold.
  • Wrap hair tightly around the barrel.
  • Curl away from your face for volume and bounce.
  • Set curls with a spray after cooling.

Conair Double Ceramic 1⁄2” Curling Iron – Dual voltage, adjustable to 400°F, 30 heat settings. Affordable option for travel.

BaBylissPRO Nano Titanium Spring Curling Iron – Up to 450°F, lightweight with 3⁄4” titanium barrel good for short fine hair.

Hot Tools 1⁄2” Marcel Curling Iron – Budget-friendly Marcel clip iron creates defined curls and ringlets on short hair.

T3 Twirl Convertible Curling Iron – Interchangeable barrels from 1⁄2” to 1” work for any short style. Advanced 5-heat settings provide customized styling.

Testing Curling Irons for Medium Length Hair

For hair grazing your shoulders to a few inches above bra strap length, you need more surface area to wrap medium sections smoothly.

Ideal Barrel Sizes for Medium Hair

Look for barrel sizes between 1” to 1 1⁄2” to create soft curls or beachy waves in medium length hair. Avoid huge 2” barrels which won’t hold a curl as well for mid-length styles.

Temperature Guidance for Medium Hair

Medium textured hair looks best between 350°F to 390°F – hot enough to set curls yet safe for most hair types. Adjust down for fine or damaged hair.

Styling Techniques for Medium Hair

  • Section into horizontal layers. Alternate curl direction.
  • Wrap wider sections of hair around the barrel.
  • Allow more time to cool before releasing curl.
  • Finish with a light hold hairspray to extend curls.

Top-Rated Curling Irons for Medium Length Hair

Bed Head Deep Waver – Tourmaline ceramic 1” barrel makes beachy waves. Even heat and instant recovery.

Drybar The Wrap Party Curling Iron – Rotating 1.25″ barrel creates voluminous curls fast. Even pressure for consistent styling.

Bio Ionic Long Barrel Curling Iron – NanoIonic mineral infused 1.25” barrel conditions while curling to reduce frizz.

Paul Mitchell Neuro Smooth Curling Iron – 1.25” triple barrel effortlessly creates soft curls, waves or mermaid-style hair.

Testing Curling Irons for Long Hair

With lengthy locks, you need a curling iron that can smooth and curl large sections of hair efficiently. Let’s discuss what to look for when curling long hair.

Barrel Size and Shape for Long Hair

Look for larger tourmaline barrels around 1.5” – 1.75” in diameter. The extended barrel length allows you to wrap more hair to create loose, textured curls and waves in long hair.

Conical, spiral or triple-barrel irons also work well as they prevent tangles on long strands. Avoid small skinny barrels under 1”.

Adjusting Temperature for Long Hair

Set heat between 380°F to 410°F. The higher end gives enough heat for thick or coarse long hair. Adjust down 10 degrees for fine or color-treated long hair.

Long Hair Styling Tips

  • Work in sections starting at the bottom layer first.
  • Use clips to section hair – allow to partially cool before releasing curl.
  • Alternate curl direction for volume and blend top layers.
  • Mist curls lightly with hairspray for hold on long styles.

Leading Curling Iron Models for Long Hair

Infinitipro By Conair Tourmaline Ceramic Curling Iron – 1.5” extra long barrel produces shiny curls fast on long hair. 5 heat levels with auto-off.

xtava Twist Curling Wand – Spiral triple barrel shapes flawless curls without tangles on extra long hair. Adjustable to 410°F with LCD display.

Bed Head Curlipops Curling Iron – Tourmaline 1.5” barrel reduces frizz and provides even heat distribution on long locks.

Beachwaver Co. S1.25 Curling Iron – Rotating 1.25” ceramic barrel gives bouncy curls with minimal effort on long thick hair.

Safety Tips for Using Curling Irons

To avoid burns or other curling iron injuries:

  • Never leave a hot curling iron unattended.
  • Allow the tool to fully cool before storing away.
  • Avoid touching hot metal barrels – use heat resistant gloves if needed.
  • Keep electrical cords away from water and heat sources.
  • Ensure you have adequate ventilation when using hair tools.
  • Don’t wrap the cord around the hot barrel after use.
  • Keep out of reach of children.

Curling Iron Maintenance

With proper care, a quality curling iron should last several years. Follow these tips:

Subscribe to our list

Don't worry, we don't spam

  • Allow to fully cool before cleaning the barrel.
  • Wipe down with a damp cloth, no harsh chemicals.
  • Don’t wrap cord tightly around the barrel when storing.
  • If cord becomes twisted, lay flat and heat with a blow dryer to straighten out.
  • Store in a cool, dry place out of humidity.


What’s the difference between a curling wand and curling iron?

Curling wands have no clamp or handle – you simply wrap hair around the barrel to curl. Curling irons have a clamp to help grip sections of hair for easier curling and control.

Can you curl short hair with a big barrel iron?

It’s best to choose smaller barrels around 3⁄8” – 3⁄4” for short hair. Large barrels over 1.5″ won’t grip short sections well. Go for the smallest barrel that will still create your desired curl shape.

What’s the best curling iron size for shoulder length hair?

1″ to 1.25″ barrels work best for medium shoulder length hair. The extended surface lets you wrap hair smoothly without tangling shorter strands.

How do you curl long thick hair with an iron?

Section hair in horizontal layers starting at the bottom to prevent tangling. Use wider 1.5” – 1.75” tourmaline barrels to curl large sections of long thick hair. Work in small sections.

Can I use a curling iron on wet hair?

It’s best to dry hair mostly before using a curling iron. Excess moisture raises the risk of sizzling and damage. You can use a light styling product on damp hair – then be sure hair is fully dry before curling.


Finding your perfect curling iron match depends on choosing the right size, shape and features for your hair’s length and texture. Testing different barrel diameters and temperatures allows you to discover the ideal iron for defined curls or beachy waves. Use the guidelines and recommendations in this article to shop for a curling iron tailored to your unique short, medium or long hair. With the right styling techniques, you’ll achieve flawless, frizz-free curls at home.

Tech Biz Kingdom - Transforming Business with Technology
Shopping cart