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The Blog·Men’s Grooming · Tonawanda

Thinning Shears, Explained: What the Scissors With Teeth Actually Do

Jonny — Jon Palmeri, owner of Jonny the Barber
By JonnyOwner · Master Barber · 12 min read
Barber shears, combs and brushes hanging on a tool wall, in black and white

Take a seat. Today’s tool is the thinning shears — the scissors with teeth that you’ve seen your barber pick up near the end of a cut, snip a few times, and put back down. People ask about them constantly, usually right after they’ve bought a pair online and done something they regret. So this is the lesson I’d give in shop class: here’s what this thing is, here’s what it’s for, and here’s why you keep it away from your own head.

We’ll go in order. Anatomy first, then how it works, then the different types, then what it does and doesn’t do. Safety rules come last, and yes, there will be a quiz. (There won’t. But read it like there will.)

Lesson one: what thinning shears are

A regular pair of hair-cutting shears has two straight blades. Close them and everything between the blades gets cut. Simple.

Thinning shears change one thing. One blade is still straight and smooth. The other blade is cut into a row of teeth, like a comb, with small gaps between them. That’s why people search for "scissors with teeth" when they can’t remember the name. Some pairs have teeth on both blades, but the common barbering setup is one toothed blade and one straight one.

That single design change is the whole tool. Everything else — the different names, the tooth counts, the price ranges — is a variation on that idea.

You’ll hear a few names for roughly the same family of tools:

The names overlap, and manufacturers don’t all use them the same way. Don’t get hung up on labels. Look at the teeth.

A barber in a black shirt holding scissors and a comb
Straight shears do the shaping; toothed shears come in after · Photo: Ernest Flowers / Unsplash

Lesson two: how do thinning shears work?

Here’s the mechanism. When you close a pair of thinning shears on a section of hair, the hair that lands under a tooth gets cut. The hair that lands in a gap between teeth slides through untouched. So instead of cutting the whole section at one length, you cut only a fraction of the strands in that section.

That’s it. That’s how thinning shears work. They remove some hair, not all of it, from one spot.

Why does that matter? Because removing a fraction of the strands at different points does two useful things:

  1. It reduces bulk. Fewer strands in a section means less volume. On thick hair, that’s the difference between hair that sits down and hair that puffs out like a helmet.
  2. It breaks up hard lines. When strands in one section end at different lengths, the edge of that section looks softer. A blunt line turns into a blended one.

Notice what’s not on that list: shaping. Thinning shears don’t create a haircut. Straight shears and clippers create the shape — the length, the outline, the fade. Toothed shears come in afterward to manage weight and soften edges. If you remember one thing from this lesson, remember that order. Shape first, then thin.

The tooth count, in plain terms

Thinning shears for hair come with anywhere from a handful of teeth to several dozen. The general rule is easy:

The spacing of the teeth and how much of each tooth is notched also change how much gets removed. That’s why two pairs with similar tooth counts can cut very differently. A barber learns their own shears the way a carpenter learns their own saw: by using them every day.

Lesson three: thinning shears vs texturizing shears

People treat these as the same thing, and in casual conversation they mostly are. But in the hand, there’s a difference in intent.

Thinning or blending shears are there to make hair less heavy without anyone noticing anything was done. You should see the result — hair that lies flatter, moves better, doesn’t poof — but not the method. A good blend looks like the hair just grew that way.

Texturizing shears, with their wider teeth, are there to make texture you can see. Pieces of different lengths, separation, a broken-up surface. That’s the look on a textured crop, where the top is supposed to look choppy on purpose. Texturizing scissors pull out real pieces, so the hair separates instead of sitting as one solid mass.

Same family. Different job. One hides its work, the other shows it off.

And for completeness: a lot of texture is cut with regular straight shears too, using techniques like point cutting, where the barber cuts into the ends at an angle instead of straight across. Some barbers lean on toothed shears, some lean on point cutting, most use both. If you want the bigger picture on tools, scissor cut vs clipper cut covers what each one is good for.

A hand working scissors along a comb
The comb lifts and holds the section; the shears decide how much comes out · Photo: mostafa meraji / Unsplash

Lesson four: what thinning shears do and don’t do

This is where most of the confusion lives, so let’s be precise.

Thinning shears do:

Thinning shears don’t:

That third point catches people. If your hair is already fine or thinning, thinning shears are usually the wrong tool. For fine hair, a barber is more likely to keep weight in, cut a cleaner shape, and use product for lift. And if you’re worried about actual hair loss rather than texture, that’s a medical question, not a scissors question — see a dermatologist. The American Academy of Dermatology’s healthy hair tips are a sensible place to start reading.

Lesson five: thinning thick hair with thinning shears

Here’s who these tools were really built for. If you have thick hair, you know the routine: the cut looks great for a week, then the top swells, the sides push out, and by week three your head looks a size bigger than it is. Thinning thick hair with thinning shears is the standard fix for that.

A barber working on dense hair will usually:

  1. Cut the shape first with clippers and straight shears.
  2. Find where the weight is building up — often the crown, the area right above the ears, and the back of the top where it meets the sides.
  3. Take sections with the comb and thin them from the mid-lengths, not right at the scalp and not only at the tips.
  4. Check, comb through, and thin again only where it’s still heavy.

That last step is the discipline. The good ones take out a little, look, and take out a little more. You can always remove more hair. You cannot put it back.

If thick hair is your daily problem, read haircuts for thick hair next. It covers which cuts work with all that density instead of fighting it. Curly and wavy hair need extra care with toothed shears, because thinning in the wrong spot breaks up the curl pattern and causes frizz; haircuts for curly hair goes into that.

Scissors on a barber's mat, motion-blurred, in black and white
One pair of shears, many ways to get it wrong at home · Photo: Igor Lifar / Unsplash

Lesson six: why you keep thinning shears away from your own head

Now the safety rules. I’ll be stern, because the internet is not.

Thinning shears look forgiving. Since they only cut some of the hair, people assume they can’t do much damage. That’s exactly backward. Their effects build up quietly, you can’t see the back of your own head, and by the time you notice the problem it’s already done. Here’s what goes wrong:

If you’ve already done this, don’t keep going to "even it out." Put the shears down. Come see a barber, and read how to fix a bad haircut so you know what can be rescued in one visit and what just needs a few weeks.

The tool isn’t dangerous. It’s just a professional tool. Barbers train for this. In New York, barbers are licensed by the NY Department of State, and knowing where weight sits on a head and how much to take out is a big part of what that training builds. It’s also one of the reasons guys ask whether they should see a barber or a stylist — barber vs stylist lays that out fairly.

Lesson seven: how to ask your barber for it

You don’t need to say "thinning shears" at all. Describe the problem and let the barber choose the tool. Some useful ways to put it:

And if you don’t want toothed shears used — some guys with fine or curly hair don’t — say so. "Please don’t thin it" is a perfectly reasonable request. A good barber will tell you honestly if they think your hair would benefit, and then do what you asked.

If you want to see who’s on the chairs before you book, the barbers page has everyone at both shops, and the services page has the full menu. A thinned, shaped cut is just a Classic: 30 minutes, starting at $25, with clippers, scissors, an edger and a straight razor. You see each barber’s exact rate before you confirm. For styling a heavy top after the cut, texture powder is a product type worth asking about.

A barber's station mat covered with tools
Shears, combs and clippers each have a job; none of them belongs in a bathroom drawer · Photo: Zlobniyy / Unsplash

Coming from Kenmore: straight up Delaware

If you’re in the Village of Kenmore, the shop is about as easy as directions get. Start at the Kenmore Municipal Building at 2919 Delaware Ave — the village’s municipal building on Delaware — and you’re basically on the route already. It’s about 9 minutes and 2.8 miles via Delaware Ave:

  1. Head north on Delaware Ave toward Victoria Blvd (2.1 mi).
  2. Keep left to stay on Delaware Ave (0.6 mi).
  3. Turn left into 578 Delaware St.

Open these directions in Google Maps. More on the neighborhood is on our Kenmore barber shop page.

Jonny the Barber Tonawanda, 578 Delaware St., Tonawanda, NY 14150 · Directions

Our Tonawanda shop is at 578 Delaware St., open Tuesday through Friday 7AM to 7PM and Saturday 8AM to 1PM, closed Sunday and Monday. It serves Tonawanda, North Tonawanda, Kenmore and North Buffalo. Dorian Mayham (master barber), Sam Balesteri and Zaid Blasiny (licensed NYS barbers) are on the chairs, and every one of them knows when to reach for the toothed shears and when to leave them on the mat. Walk-ins are welcome when there is an open chair — appointments are encouraged, so call 716-389-0192 to confirm someone is free. Or book online, or call 716-389-0192.

Class dismissed. Leave the thinning shears to us.

Questions
we get asked

How do thinning shears work?

One blade is straight and the other has teeth with gaps between them. When the shears close, only the hair under the teeth gets cut and the rest slides through, so you remove some strands from a section instead of all of them.

What is the difference between thinning shears and texturizing shears?

Thinning or blending shears usually have more, finer teeth and remove a little hair per snip to reduce bulk quietly. Texturizing shears have fewer, wider teeth and take out bigger pieces to create visible, choppy texture.

Should I use thinning shears on my own hair?

It's not a good idea. You can't see the back of your head, the effect builds up quietly, and it's easy to cause holes, frizz or a puffy look that can only be fixed by growing it out.

Do thinning shears work on thick hair?

Yes, thick and dense hair is what they're best for. A barber cuts the shape first, then removes weight where it builds up so the hair lies flatter and grows out more evenly.

Are thinning shears bad for fine or thin hair?

Usually they're the wrong tool for fine hair, because removing strands makes it look even finer. If you're worried about actual hair loss, see a dermatologist rather than a barber.

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