The Key Is The Plate Thickness And Tension
Like many users, I have tried my fair share of flat irons. Everyone who posts reviews seems to have "coarse, curly, thick" hair, as do it (think Indian hair, 3b). I also have quite a few coarse grey hairs on the crown area of my head. These hairs are particularly resistant to even 450 F heat from previous flat irons.
I think the key to the success of this iron is the thickness of the plates and the tension of the entire mechanism. By tension, I mean how closely the plates grip the hair and the slight amount of friction caused by the plates against the hair. The tension/friction allows for "grasping" of the hair very closely. This allows the user to easily straighten the hair in one pass without having to press/squeeze hard in order to maintain tension. Most flat irons seem to boast that the plates "glide" across the hair. But this may indeed work against resistant hair, as the slight friction may allow for better contact with hair. When held properly at the base of the iron (as opposed to the shaft), there is no need for a lot of muscle work from hands or forearms.
With other irons, I usually have to do 3 passes to get stick straight, but was pleasantly surprised that 1 pass did the job at 410F. Even the top grays were straight with one pass. The width of the plates is perfect for getting a slight curve at the ends of the hair. So far, I am very pleased with this purchase and will be recommending it to those with my hair type.
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