To choose the best spiral curling iron, check the barrel size. It should be approximately 0.75 inches (1.9 cm) in diameter to create spiral curls with a tight hold, or somewhat wider for looser curls. If you have long hair, you'll need to select a spiral curling iron with a long barrel to create longer spirals. Choose a curling iron with a fast heat option for quick operation. For safety purposes, you should select a curling iron that has an automatic shut-off feature.
A spiral curling iron is different than a standard curling iron in that it will have a grooved barrel to create spiral-type curls. Not all spiral curling irons are created equal, however, and you will find a wide array available with various features for different needs. Various heat settings allow you to adjust the temperature as needed. High temperatures will generally create a longer hold than a lower heat setting.
Ceramic spiral curling irons use a special technology that can reduce frizz and static electricity. This may be suitable if you have unruly hair that tends to frizz during high humidity. You may find that a Teflon® or non-stick barrel will distribute the heat evenly, eliminating flyaway ends. A tourmaline curling iron will generally produce shine and luster.
To achieve the various styles and spiral curls you desire, you should consider buying a spiral curling iron that includes an instructional video. This can be extremely helpful for giving you ideas for what styles might look best for your face shape. If you can't find a spiral curling iron with an instructional video, be sure that it at least comes packaged with a styling guide for tips and reference.
If you plan on traveling abroad with your spiral curling iron, a necessary feature to look for is dual voltage. A model with dual voltage will allow you to use your product in another country without having to purchase a special adapter. It should state on the packaging whether the device has this feature.
A titanium spiral curling iron is generally a good choice for creating curls that will not snag. With a smooth barrel, this type of curling iron will leave your hair smooth and shiny as it creates tight or loose spiral curls. Titanium is also a good choice if you regularly use hair-styling products because titanium is resistant to corrosion caused by chemicals.