10 Best Curling Iron For Long Thick Hair 2025 in the United States

The Conair Double Ceramic 1 1/2-Inch Curling Iron is a good option for those with medium to long hair looking to create soft, natural waves. Its 1.5-inch barrel size is ideal for producing loose curls that work well on thicker hair without tight ringlets. Made with ceramic, it provides even heat distribution which helps reduce frizz and keeps hair looking smooth.

With 30 heat settings reaching up to 375°F plus a Turbo Boost, you can customize the temperature according to your hair’s thickness and styling needs, which is great for managing long, thick hair that usually requires more heat. It also features a cool tip for safer handling and an auto shut-off for added safety if you forget to turn it off. The 5-foot swivel cord adds convenience by preventing tangles during use.

This curling iron balances effective heat control and frizz reduction, making it a solid choice for creating soft waves on long, thick hair. Users should be comfortable with clamp-style irons, as it uses a clamp rather than being clipless, which might require some practice to avoid creases in hair.

The Conair Double Ceramic 1-Inch Curling Iron is designed to produce classic curls with a 1-inch barrel that's versatile for various hair lengths, including long, thick hair. Its ceramic material ensures even heat distribution, which helps in achieving long-lasting curls with less frizz. One of its strong points is the 30 heat settings, which allow customization for different hair types and textures, reaching up to 375°F. This feature is particularly beneficial for thick hair that often requires higher temperatures to hold curls effectively. The Turbo Heat boost can be useful for styling more challenging sections of the hair.

Additionally, the cool tip and auto shut-off feature enhance safety during use. The dual voltage capability makes it convenient for international travel. However, the 1-inch barrel might be slightly limiting for those seeking larger, looser curls, which are often favored for long, thick hair. The presence of a clamp might be a drawback for users preferring clipless designs that can offer more styling flexibility and less risk of clamp marks.

The recessed buttons are a practical addition to prevent accidental shutoffs, but the size and weight of the curling iron could make extended styling sessions somewhat tiring. Lastly, the swivel cord aids in maneuverability during use. This curling iron is a good fit if you need a reliable tool for creating classic curls and value safety features, though its barrel size and clamp design may not suit everyone’s styling preferences.

The Bio Ionic Long Barrel Styler is a solid choice for individuals with long, thick hair who are looking for a reliable curling iron. One of its main strengths lies in its innovative Moisture Heat Technology and NanoIonic MX, which help to lock in moisture and keep curls hydrated and bouncy. This feature is particularly appealing for those who want to avoid the dryness that often comes with heat styling. The 1.25-inch barrel creates medium-defined curls, and its longer barrel of 2 inches makes it easier to style long hair, especially when reaching the back sections.

Another highlight is the adjustable heat settings that go up to 430°F, allowing users to select a temperature that suits their hair type. This versatility is great for those who might have different styling needs based on their hair's condition. Additionally, the auto shut-off feature after one hour enhances safety, making it a practical choice for everyday use.

On the downside, some users might find that the 1.25-inch barrel size is limiting if they prefer tighter curls, as it is designed for medium-sized curls. The weight of the curling iron, at 9.6 ounces, could be slightly cumbersome for extended styling sessions, particularly for those who are not used to heavier tools. Furthermore, while the ceramic material generally provides good heat distribution, it may not be as effective for very coarse or resistant hair types without using higher heat settings.