8 Best Mini Flat Irons of 2022

Our Beauty Lab experts at the Good Housekeeping Institute regularly test hot tools, from curling irons to hair dryer brushes. When we tested mini flat irons, we evaluated 10 models against five full-sized Lab-tested straighteners. The Lab scientists honed in on safety and effectiveness by assessing temperatures of surfaces that can touch skin and handling of the controls. We measured the inner plate and surface temperature heating profiles of the flat irons and compared them to the temperature of the full-sized straighteners we previously tested and recommended. We also tried the hair tools on 15 consumer testers who gave satisfaction ratings based on how well it straightened, its surface heat and straightening temperature, then commented on what they liked and disliked about it.

✔️Dual voltage is always a good idea as it’s one less worry when traveling internationally. Still, we recommend finding an appropriate travel adapter for plugging into outlets as some voltages may vary depending on where you are.

✔️Most mini flat irons feature a 0.5-inch wide plate. For consumers with long, thick or curly hair, it may take more time or effort to do their regular styling with a travel iron, so consider this before you ditch your regular one on your next trip.

✔️For travel irons that are relatively short in length and compact in size, the controls may be too close to the hot plates or the hinge. The user can then face burning their fingers or have difficulty adjusting settings including turning it on and off. Aral suggests that they look for simple controlslike one with auto on/off and easy-to-reach settings.

Executive Director of the Beauty Lab Birnur Aral evaluates nearly every beauty category under the sun, including GH’s guides to sulfate-free shampoo and hair masks. In addition to her 15 years of leading clinical and consumer testing in the Beauty Lab, she contributes her industry knowledge with her R&D experience in testing the above products and brands in Lab. Associate Product & Reviews Editor Jacqueline Saguin wrote this story according to research and tests sourced from the GH Beauty Lab. She also added comprehensive shopping advice based on Aral’s expertise and tips.