1B Hair: How to Tell If You Have It + 14 Cuts That Suit It

Oleh Onysko 16 October 2026 14 min read

See this cut on your face, free Grid of nine young women in streets, cafes, parks and apartments, all with straight 1B hair in cuts from a dark brown bob to long black hair and a mid brown cut with bangs

In this article

1B hair is straight hair with a little life in it: it grows straight from the root, has some body at the crown, and turns slightly at the ends instead of hanging dead flat. It is the middle of the three straight types, between flat 1A and bent 1C, and it is the most common straight hair there is.

Here is the part most 1B guides skip. The small turn at the ends is the whole story. It is too weak to style on its own, but strong enough to flip the wrong way the moment your hair touches your shoulders. So with 1B hair, where the cut ends matters more than which cut you pick. End it above the shoulders or well below them, and the ends behave. End it right on them, and you fight a flip every morning.

This guide covers how to tell whether you are 1A, 1B or 1C, fourteen cuts that suit 1B hair, how to pick one for your density and face, the mistakes that make it go flat or flippy, and how to style and care for it.

What is 1B hair?

1B hair is type 1 (straight) hair with medium-thickness strands, a bit of natural volume at the crown and a slight bend or flick in the last inch or two. It does not form waves or an S-shape anywhere. Left to air-dry, it looks straight from the front and only shows its bend at the very ends.

The chart comes from stylist Andre Walker, whose hair typing system sorts hair from type 1 (straight) to type 4 (coily). The A, B and C inside each type say how much bend and body the hair has. 1A is the flattest, 1C has the most bend, and 1B sits in between.

Young woman on a city sidewalk with long mid brown hair, straight from the roots with the ends turning slightly — Air-dried 1B hair: straight from the roots, a slight turn at the ends

What 1B hair does day to day:

It holds a style better than 1A. Medium strands keep a blow-dry or a curl for most of the day.
It gets oily, but slower than 1A. Oil still slides down a straight strand quickly, so most people wash every day or two.
It frizzes very little. A few flyaways on a humid day, not a halo.
It has a mind of its own at the ends. The flick goes out, in, or both ways on the same head, depending on length and how you slept.

Want to see it first? Try a new hairstyle on your own photo.

How to tell if you have 1B hair

Do the air-dry test. Wash your hair, condition only the ends, skip every styling product, and let it dry fully without a brush, a dryer or your hands. Then look at it in daylight.

1A: no bend anywhere, fine strands, flat to the scalp. See the 1A hair guide.
1B: straight down the length, a little lift at the crown, and a slight turn in the last inch or two.
1C: straight at the root, then a loose S-bend from mid-length, coarse strands and some frizz on top. The 1C hair guide goes deeper on that one.
2A: a flat, repeating S-wave that starts around the ears. If you see a pattern rather than a turn at the ends, read the 2A hair guide.

The tell between 1B and 1C is where the bend starts. If it only shows in the ends, you are 1B. If you can see it above your chin, you are probably 1C.

1B hair vs 1A, 1C and 2A

	1A	1B	1C	2A
Bend	None	Slight flick at the ends	Loose S from mid-length	Repeating flat S-wave
Strand	Fine	Medium	Coarse	Fine to medium
Volume	Flat	Some at the crown	Most of type 1	Moderate, flat roots
Frizz	Almost none	A few flyaways	Halo on top	Some, mid-length
Main problem	Limp and oily	Ends flipping the wrong way	Puff	Waves dropping flat
Easiest cuts	Blunt bob, pixie	Almost any, if the length is right	Blunt lines, long layers	Long layers, lobs

14 haircuts for 1B hair

Every photo below is the same hair type: straight from the root, a little body at the crown, a slight turn at the ends. Only the cut changes. The short and blunt shapes come first, then the longer ones, then the most layered, so you can see how much each cut leans on that turn at the ends.

Gallery14 photos · tap to enlarge

Young woman in a salon with chestnut brown hair in a chin-length blunt bob with a side part — Blunt bob

Young woman in a salon with dirty blonde hair in a collarbone-length blunt lob with a middle part — Blunt lob

Young woman in a salon with mid brown hair in a rounded chin-length Italian bob with a side part — Italian bob

Young woman in a salon with black hair in a short French bob with soft bangs at the brows — French bob

Young woman in a salon with ginger copper hair in a long bob above the shoulders with a deep side part — Side-part long bob

Young woman in a salon with chestnut brown shoulder-length hair cut one length with the ends flipped slightly outward — Flipped ends

Young woman in a salon with long glossy black hair cut one length past the shoulders with a middle part — Long one-length

Young woman in a salon with long mid brown hair past the shoulders and heavy straight bangs at the eyebrows — Blunt bangs

Young woman in a salon with auburn shoulder-length hair, a middle part and long curtain bangs framing her cheeks — Curtain bangs

Young woman in a salon with long light brown hair cut in soft layers past the shoulders — Long layers

Young woman in a salon with long honey blonde hair and face-framing layers starting at the cheekbones — Face-framing layers

Young woman in a salon with long golden blonde hair in a butterfly cut with face-framing layers — Butterfly cut

Young woman in a salon with auburn hair in a shoulder-length soft shag with a wispy fringe — Soft shag

Young woman in a salon with dirty blonde hair in a textured pixie cut with a longer side-swept top — Pixie cut

Which cut suits your 1B hair?

1B hair takes most cuts, so what decides the result is how much hair you have and where the cut ends. Use this to narrow it down.

Your situation	Best cuts	Avoid
Fine strands, low density	Blunt bob, blunt lob, pixie	Long hair with heavy layers
Thick, lots of hair	Long layers, butterfly cut, soft shag	Short blunt bob with no internal shaping
Ends flip out every day	Chin-length bob, or long past the collarbone	Cuts ending right on the shoulders
Flat at the roots	Italian bob, curtain bangs, face-framing layers	Long one-length with a middle part
Round face	Collarbone lob, side part, long layers	Rounded chin-length bob

Fine 1B hair: one blunt line

If your strands are on the fine side, a blunt cut makes the most of them. A chin-length blunt bob keeps every hair at the same length, so the ends look thick and the slight turn curls them under instead of out. It is the cut that suits 1B hair with the least effort, and the layered bob guide shows where to go if you want more movement later.

Young woman on a park bench in autumn with light brown hair in a chin-length blunt bob — A chin-length blunt bob: one line, the ends turn under

Say this to your barber

A chin-length blunt bob, one solid line at the jaw, no layers, and please do not thin the ends.

Thick 1B hair: layers that start low

Thick 1B hair can look heavy and square when it is all one length. Long layers that start at the chin or below take the weight out without making the top flat, and the turn at the ends shows on each layer. A butterfly cut or a soft shag works the same way with more movement around the face.

Young woman on a balcony at sunset looking over her shoulder, long thick black hair falling straight down her back — Long, thick hair falling straight down the back

1B hair that flips at the shoulders

This is the most common complaint with 1B hair. When hair ends right on the shoulders, every movement pushes the ends outward, and the natural turn makes it worse. You have two fixes: go up to the jaw or chin, where nothing pushes the ends, or grow it a few inches past the collarbone, where the weight pulls them down. If you love shoulder length, ask for the flip on purpose and style it out, like the flipped-ends cut in the gallery. The shoulder length haircuts guide has more cuts for that in-between stage.

1B hair and a round face

A rounded chin-length bob adds width at exactly the widest part of a round face. Go down to the collarbone, part it to the side and let the ends fall below the jaw, so the line runs down rather than across. If you are not sure of your face shape, measure it here first, or match lengths in the face shape guide.

Young woman with a coffee at a cafe window, auburn hair in a collarbone-length lob with a side part — A collarbone lob with a side part sits below the jaw

Measure it instead of guessing

Hairline to chin Cheekbone to cheekbone

Both numbers in the same unit — the answer is a ratio, so it does not matter which.

Under 1.15 reads round, 1.15 to 1.5 reads oval, over 1.5 reads long. Oval and long split on the jaw rather than the ratio: an oval tapers toward the chin, a long face runs straight down.

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Mistakes that make 1B hair look flat or flippy

Ending the cut on the shoulders. The ends flip out all day. Go shorter or longer by two inches.
Thinning the ends. On medium strands, thinned ends look stringy, and the turn turns into separate wisps. Keep the ends blunt.
Heavy conditioner at the roots. 1B hair already gets oily within a day or two. Condition from mid-length down only.
Air-drying flat against the head. The crown is the one place 1B hair has body. Flatten it while wet and it stays flat.
Heavy creams and curl products. They weigh the hair down and do not create curl that is not there.

How to style 1B hair

1B hair is the easiest straight type to style, because it holds a shape. The goal is usually lift at the roots and control at the ends.

Young woman at a bathroom mirror drying the crown of her dirty blonde hair over a round brush with a hair dryer — Lift the crown: dry the roots upward over a round brush

How to blow-dry 1B hair for volume

Towel-dry gently
Squeeze the water out with a microfiber towel or a cotton t-shirt, until the hair is damp rather than wet.
Add a light product at the roots
Use a little volumizing mousse or root spray at the roots only, and a heat protectant through the lengths.
Dry the roots upward
Flip your head over or lift sections at the crown with a round brush and dry the roots against the way they fall.
Shape the ends
Finish the ends over the brush, turning them under or out, whichever way you want them to sit. Use the cool shot to set them.
Finish lightly
A drop of light oil on the ends or a mist of flexible hairspray. Nothing heavy, or the volume drops by noon.

For waves, 1B hair takes a curling iron or a flat iron twist well and holds it for hours. Use a heat protectant first and let the curls cool before you brush them out.

How to care for 1B hair

Wash: every day or every other day, with a gentle shampoo. Dry shampoo at the roots buys an extra day.
Condition: every wash, mid-lengths to ends only.
Products: lightweight everything. Mousse, root spray and light oils, not butters or heavy masks.
Trims: every six to eight weeks for bobs and shorter cuts, eight to twelve weeks for long hair. The ends show damage first.
Sleep: a silk or satin pillowcase keeps the ends from kinking overnight.

Is 1B hair rare?

No. 1B is generally considered the most common straight hair type, and many people who call their hair "just straight" are 1B. There is no reliable count of how many people have each type, so any ranking of rare hair types you see online is a guess.

Can you see a cut on your own 1B hair first?

Here is the wall with every tip above. With 1B hair, two inches decide whether a cut flips or falls, and whether a bob looks sleek or wide on your face. The photos you save are on someone else's hair and someone else's face, and the only way to know for sure is to get the cut and live with it until it grows out.

A try-on removes that guess. Upload a selfie and see the cut on your own face, at the length you are thinking of, before anyone picks up the scissors.

Is the try-on free?

Yes, the first look is free and needs no card: one hairstyle and one colour on it, front view. After that, Plus is $9.99 a week or $60 a year for 150 credits and all 120+ cuts and colors. Every plan has a seven-day refund with no conditions.

One free look is enough to settle the question that matters most with 1B hair, which is usually bob or lob.

1B hair is the easy straight type: it holds a style, frizzes little and suits almost any cut. Its one habit is the turn at the ends, and the length of the cut decides whether that turn works for you or against you. Keep the line blunt if your hair is fine, layer it low if it is thick, stay off the shoulders if your ends flip, and go longer with a side part if your face is round.

If you want bangs with it, the long hair with bangs guide has the options, and for the next type up see 2B hair.

Frequently asked questions

Is my hair 1A, 1B, or 1C?

Air-dry it with no product and look at the ends. No bend at all and fine, flat strands means 1A. A slight turn only in the last inch or two, with some body at the crown, means 1B. A loose S-bend that starts around the cheekbones or jaw, with coarse strands, means 1C.

How do I tell if my hair is 1B or 1C?

Look at where the bend starts. 1B hair is straight until the very ends. 1C hair bends from mid-length down, feels coarser and frizzes more on top. If you can see a bend above your chin, you are probably 1C.

Is 1B hair straight or wavy?

1B hair is straight. It has a slight bend at the ends and a bit of body, but no wave pattern. If your hair forms a repeating S-shape, it is type 2.

Does 1B hair get frizzy?

A little. 1B hair can get a few flyaways in humid weather, but much less than 1C or wavy hair. A light anti-frizz serum on the ends is usually enough.

Is 1B a rare hair type?

No. 1B is one of the most common hair types, and arguably the most common kind of straight hair. Nobody has reliable figures for how many people have each type, so rankings of rare hair types are guesses.

What hair type is the rarest?

There is no reliable data on it. Online lists often name 1A or 4C as the rarest, but none of them cite an actual count, so treat those claims as opinion.

What's the difference between 1B and 2B hair?

1B hair is straight with only a slight turn at the ends. 2B hair is wavy, with defined S-shaped waves from mid-length down and more frizz. They need very different products: 1B wants light volume products, 2B wants light curl and wave products.

Is 1B considered black hair?

As a hair type, no: 1B describes straight hair with a slight bend, in any colour. Separately, "1B" is also a colour code on wigs, extensions and hair dye charts, where it means off-black, a natural black that is a shade softer than jet black (color 1). The two uses share a name but are unrelated.

Preview it on your own photo: Virtual Hair Color Try-On.

About the author

Oleh Onysko

Founder

Women's Haircuts · 13 min

1B Hair: How to Tell If You Have It + 14 Cuts That Suit It

What is 1B hair?

How to tell if you have 1B hair

1B hair vs 1A, 1C and 2A

14 haircuts for 1B hair