How to Blow-Dry a Bob With a Clean, Curved Finish

A bob only looks finished when the ends curve in toward your jaw instead of flipping out or falling straight down the sides. If you already have the cut, learning how to blow dry a bob the right way comes down to three things: how you section it, the angle you hold the round brush at, and how far you roll the ends under before you set them with cool air. Get those three right with Lucine, and a blunt line reads as one clean, curved shape instead of pieces of hair drying in different directions.

Section a Bob Before You Pick Up the Dryer

Because a bob is short, every section shows — there's no length left to hide an uneven part or a section that dried facing the wrong way. Comb the hair straight down while it's damp and part it where you normally wear it, then clip the top layer up and out of the way so you can work the bottom layer first. Split the bottom layer into two to four sections depending on thickness, working from the nape outward. Keeping sections this small matters more on a bob than on longer hair, since each section only has a few inches to build its curve in before you reach the ends.

How to Blow Dry a Bob With a Round Brush

Work one section at a time with a medium round brush — roughly 25–35mm suits most bob lengths, since anything much larger won't wrap a short section far enough to shape the ends. Place the brush underneath the section near the root, then follow it down the length with Lucine's airflow as you roll, keeping the nozzle a few centimetres from the hair rather than pressed against it. Move slowly through the mid-lengths, where the shape of the bob is set, then slow down further as you approach the last inch or two — that's where the inward curve actually happens.

1. Start each section damp but not dripping, combed flat and free of tangles.
2. Place the round brush underneath the section, close to the root.
3. Follow the brush with airflow from root to mid-length, rolling as you go.
4. Slow the roll as you reach the ends, where the curve is built.
5. Move to the next section only once the current one holds its shape unassisted.

Rolling the Ends Under for the Inward Curve

Once a section is mostly dry, wrap the last one to two inches of hair around the brush and roll it under, toward your neck rather than out and away from it. Hold that wrap in place under warm airflow for a few seconds, then switch Lucine to cold air before you release the brush. The cool-air hold is what locks the bend into the hair shaft — releasing the brush on warm air lets the ends relax back out before they've had a chance to set, which is the most common reason a bob's ends flip out instead of curving in.

Keeping the Curve Even From Front to Back

A bob shows unevenness more than most cuts, since the eye can compare both sides in one glance. Work the sections in the same order on both sides of your head — nape first, then sides, then the front pieces last — and use the same brush angle and roll speed each time. If one side curves more than the other once you're done, it's rarely the hair itself; it's usually that one side was rolled faster or the brush was held at a steeper angle. Slow down and repeat the slower side rather than trying to fix it by over-curling the other.

Blunt Bob vs Graduated Bob: What Changes

• Blunt, one-length bob: keep every section the same size so the curve lands at the same point all the way around — an uneven section size is what makes a blunt line look jagged once dry.
• Graduated or layered bob: shorter interior layers need less time under the brush to curve, since there's less length to wrap — check them before the outer layer so you don't over-dry the shortest pieces waiting for the rest to catch up.

For more on holding the dryer and brush together through a full section, see The Round-Brush Blowout. To review Lucine's airflow and heat settings for shorter sections like a bob, the Lucine InfraSonic Hairdryer page covers the full control layout.

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