Low 1-8 – delicate, thin, easy-to-curl hair. Medium 9-14 – average to thick or treated hair. Med-high 15-20 – thick or wavy hair. High 21-25 – hard-to-curl hair.

Conair Instant Heat 1 ½-inch Curling Iron designed to create big beautiful soft waves. 25 heat settings for all hair types with instant 30-second heat up to 400°F and Turbo Heat feature, which increases barrel temperature by up to 36°F.

Best Drugstore Option: Conair Instant Heat Curling Iron The beloved tool has 25 different heat settings and a barrel that uses smart technology to evenly distribute heat, allowing you to achieve perfect curls with each use. It has a 4.1-star rating, and many reviewers call it the best curling iron they’ve ever owned.

For those with fine or thin hair, keep your iron set below 200 degrees Fahrenheit. Any higher and your strands may burn. For those with coarse or thicker hair, have your curling iron set between 200 degrees and 300 degrees Fahrenheit for optimal curls.

Showing 1-6 of 6 answers. No matter what temperature you are using, for example, you may have it on 9 heat (which is what I use) but when you press the “turbo” button it heats the iron up several degrees more very quickly for those areas where you need a little extra heat to get the curl you want.

• Best Overall: Hot Tools 24K Gold Curling Iron.
• Best Budget: Conair Double Ceramic 1-Inch Curling Iron.
• Best Drugstore: Revlon Salon Long Lasting Curls Curling Iron.
• Best for Beach Waves: Beachwaver Co.
• Best for Beginners: CHI Air Spin N Curl Ceramic Rotating Hair Curler.
• Best for Thick Hair: T3 SinglePass Curl 1.25-Inch.

Many proponents of ceramic curling irons claim that they are better for the hair because they conduct heat evenly across the barrel while releasing negative ions, thereby preventing frizzing.

curling iron. an instrument for curling or waving the hair, generally a metal rod around which, after it is heated, a tress of hair is rolled into a ringlet.

A ceramic curling iron has a smooth surface, which gives the hair a more uniform curl, prevents dust and debris from collecting on the iron (and ultimately transferring to your hair) and ensures that heat is evenly distributed throughout the heating rod. This prevents the temperature from spiking uncontrollably, thereby damaging your hair.