Straightening 2C, 3A and 3B hair without losing root volume
Wavy and curly hair sits between fine straight hair and tight coils: it straightens readily, but thick lengths, bends that crease and flat roots trip people up. Here is how to press it in one pass and which width to pick.



Tap your wave or curl pattern
What makes it tricky: 2C waves often start close to the root and frizz most at the crown, yet over-pressing or heavy product leaves the roots flat against the scalp.
How to press it: dry the roots completely, start low on the temperature chart, and hold each 1.5" × 0.5" section up and away from the scalp as you start the glide, so the crown keeps its lift.
What makes it tricky: big, loose spirals spring back if the middle of the section isn't heated evenly — most often on long, thick hair, when the sections get bigger as your arms tire.
How to press it: keep every section thin to the end of the head. On long, thick hair the 2" Titanium Wide gives each strand twice the heated path per glide, so a slow, steady pass smooths the spiral without turning the heat up. If you also want to curl with the same iron, choose the 1" Titanium Classic.
What makes it tricky: 3B curls are densest at the root and the nape, while the ends are older and have been through more wash days.
How to press it: lead every pass with a fine-tooth comb (comb-chase method) so the curls uncoil into a flat sheet before the plates, glide slower over the root third and press lighter over the ends. For tight curls at the hairline, the part and the nape, the 0.3" Mini reaches the root — the Silk Press Set pairs it with the 2".
How 2C–3B differs from straight hair and tight coils
A straight strand lies flat against the plate along its whole length. A wave or spiral enters the plates with bends in it, and in a thick, uncombed section those bends cross over each other. Clamp that and the plates press the crossings in as creases instead of a smooth ribbon — and you go back over it. Comb the section into parallel strands just ahead of the plates and one slow pass is enough.
Compared with tight Type 4 coils, 2C–3B hair usually straightens with less heat, which is why it is easy to overdo: start at the low end of your row in the temperature chart and only go up a step if a section isn't smooth after one slow pass.
How to keep root volume
Pull a section straight down against your head and clamp at the root, and the hair sets with a downward bend right at the scalp: the crown goes flat and face-framing layers cling to your forehead. Instead, lift crown and top sections straight up from the scalp (or slightly forward) for the first inch, then let the glide curve gently down the length. Underneath and at the nape, where volume isn't wanted, glide straight down.
Long, thick wavy hair, straightened now and then: which width?
- Getting through long, thick lengths is the priority → the 2" Titanium Wide. Every section is still 1.5" × 0.5"; what the 2" changes is the heated path each strand crosses per glide — twice a 1" plate at the same hand speed.
- You straighten occasionally and also want curls or waves → the 1" Titanium Classic, narrow enough to turn into ribbon curls and beach waves.
- Both → the Salon Pro Duo (2" + 1") for $89.99, or the Silk Press Set (2" + 0.3") if it is the roots, bangs and edges you need to reach.
Still unsure? Compare all three in which plate width fits your hair.
Straighten now and then? Don't fight thick sections with heat
If you only straighten a few times a year, it is tempting to turn the heat up to get through thick sections faster. The heat isn't what's missing — the sections are too big. Divide the hair into four parts, clip them up, and take 1.5" × 0.5" sections from each (why sections matter). A thin section and a slower single pass do more than another step on the + button, and save the ends from the extra heat.
Quick checklist for 2C–3B
- Completely dry hair and a heat protectant.
- Four parts, then 1.5" × 0.5" sections (sectioning).
- Comb just ahead of the plates, one slow pass (comb-chase).
- Start low on the temperature chart; one step up only if needed.
- Lift crown sections for volume; turn the ends if you want movement (curls and waves).
All three irons have titanium plates, an LCD temperature display with +/− buttons, a 360° swivel cord and an ergonomic grip.

2" Titanium Wide
Not sure which width? Take the 30-second quiz →