Thinning Scissors: The Complete Guide for Australian Hairdressers

Thinning scissors are one of the most misunderstood tools in a hairdresser's kit. Used correctly, they remove bulk, add movement, and create seamless blending that elevates every haircut. Used incorrectly — or with a cheap pair — they leave visible steps, chop marks, and clients who never come back.

After decades behind the chair and sharpening over 100,000 pairs of scissors, I've seen every thinning scissors mistake in the book. This guide covers everything you need to know: what thinning scissors actually do, how to choose the right pair, tooth count, left-handed options, and maintenance.

What Are Thinning Scissors?

Thinning scissors (also called thinning shears, texturising scissors, or blending scissors) are a specialised hairdressing tool with one regular cutting blade and one blade with teeth (notches). When you close the scissors, hair passes through the teeth — some strands are cut, others pass through uncut.

The result is controlled bulk removal without changing the overall length or shape of the haircut. This is fundamentally different from cutting scissors, which cut every strand they contact.

Thinning Scissors vs Texturising Scissors

While the terms are often used interchangeably, there's a subtle professional distinction:

• Thinning scissors typically have 30-46 teeth and take a smaller share of the hair caught per closure. They're designed for even, invisible blending — reducing weight without leaving a mark.
• Texturising scissors typically have 8-20 teeth (wider spacing) and take a larger share of the hair caught per closure. They're designed for creating texture and movement, and for pulling real bulk out of thick hair.

For the detailed comparison, read our guide: thinning scissors vs texturising scissors — what's the difference?

When to Use Thinning Scissors

Thinning scissors are essential for:

• Reducing bulk in thick hair — Australian hair, especially in humid climates, often carries excess weight. Thinning scissors remove volume without losing length.
• Blending layers — Create seamless transitions between different lengths. Thinning through the mid-lengths and ends softens hard lines left by cutting scissors.
• Softening the perimeter — Instead of a blunt, harsh line at the ends, a few passes with thinning scissors create a natural, lived-in finish.
• Texturising men's cuts — Barbers use thinning scissors to add movement and reduce weight in scissor-over-comb fades and textured crops.
• Managing cowlicks and problem areas — Strategic thinning in areas where hair sits heavy or pushes in the wrong direction helps the style fall naturally.

How to Choose Thinning Scissors

Tooth Count

The number of teeth determines how much hair is removed per cut:

A note on numbers: we don’t publish neat removal percentages. How much hair actually leaves depends on where you close on the section, your angle, and how many closures you make — nobody publishing “30 teeth = 30%” has measured your section. Tooth count and spacing set the band; your hands set the amount.

For most Australian salon professionals, a thinning scissor with 28-35 teeth offers the best versatility — enough removal for thick hair, but fine enough for finishing work.

Which ShearGenius Thinner Matches Which Tooth Count

Those brackets are only useful if you can put a real tool against them. Every model below is a current ShearGenius thinner, texturiser or channeller, with the tooth count taken from the blade spec and the live price:

• 10–16 teeth · the heaviest removal per closure · heavy bulk and carved texture. For pulling real weight out of very thick hair, the ShearGenius Dracula 10 Channeller ($695) carves with ten wide-set Japanese Cobalt Alloy teeth and takes a heavy share of the hair caught per closure. The ShearGenius Jada 16 Channeller ($400) runs a 16-tooth Japanese Cobalt Alloy blade for pronounced texture, where the visible channels are the design intent.
• 26–30 teeth · moderate, even removal per closure · general thinning and blending. For everyday blending in a busy salon, the ShearGenius Geisha Thinning Scissor ($395) runs a 30-tooth Japanese Cobalt Alloy blade and releases an even, moderate share of the hair caught per closure. For more weight out per pass with the blend still soft, the ShearGenius Prodigy Texturiser ($495) and the ShearGenius Vampire 26 Texturiser ($480) each run a 26-tooth Japanese Cobalt Alloy blade.
• 35 teeth · the lightest removal per closure · fine finishing. For invisible finishing on fine or coloured hair, the ShearGenius Vampire 35 Thinner ($480) runs a 35-tooth Japanese Cobalt Alloy blade and releases a light share of the hair caught per closure. The ShearGenius Jada 35 Thinner ($400) is the same 35-tooth blade spec, built for daily texturising on thick, dense, coarse hair.

One honest correction to the textbook brackets: on our own bench the changeover from blending to texturising sits at 26 teeth, not at 20. The 26-tooth Prodigy Texturiser takes more weight per closure than the 30-tooth Geisha Thinner while keeping the blend soft and trackless — which is exactly what a texturiser is for.

For a first professional thinner at the lowest honest price of entry, the ShearGenius Young Genius Thinner ($250) is the Apprentice Range thinner: Japanese Cobalt Alloy at 58 HRC on a single-bearing flat tension system.

Steel Grade

The same steel principles that apply to cutting scissors apply to thinning scissors:

• Japanese Cobalt Alloy (58 HRC) — smooth, forgiving action with an easy price of entry — the steel most of the ShearGenius thinning line runs
• Japanese ATS-314 (58-60 HRC) — longer edge retention, consistent performance across demanding salon days
• Japanese Forged ATS-314 (60-62 HRC) — the ultimate in edge retention and precision — maximum edge life at the top of the range

Cheap thinning scissors made from inferior steel will catch, pull, and damage hair — the exact opposite of what they're supposed to do. Read the true cost of cheap hairdressing scissors.

Size

Thinning scissors typically come in 5.5" to 6.5". Most hairdressers match their thinning scissors to their cutting scissors size, or go slightly longer for reach. Our sizing guide helps you find the right fit.

Left-Handed Thinning Scissors

Left-handed hairdressers need specifically designed left-handed thinning shears — not just right-handed scissors flipped over. The blade orientation must be reversed so the toothed blade sits correctly against the hair when cutting with your left hand.

Using right-handed thinning scissors in your left hand causes the blades to push apart rather than together, leading to folding, pulling, and uneven results. For the full breakdown, read our left-handed hairdressing scissors guide.

ShearGenius builds two left-handed thinners, both built left from the start rather than a flipped right-hander. The ShearGenius Geisha Left-Handed Thinner ($395) comes in 5.5, 6.0 and 6.5 inch on a Japanese Cobalt Alloy edge at 58 HRC with a left-built offset ergonomic handle. The ShearGenius Young Genius Left-Handed Thinner ($250) runs a 30-tooth Japanese Cobalt Alloy blade at 58 HRC, also built left from the start. Browse the full left-handed collection.

How to Use Thinning Scissors Properly

The technique matters as much as the tool:

1. Never thin at the roots. Thinning near the scalp creates short, spiky regrowth that sticks straight up. Work from the mid-lengths down.
2. Cut on dry hair when possible. You can see the true weight distribution on dry hair. Wet hair masks where the bulk actually sits.
3. Use the comb-and-close technique. Comb through a section, position the thinning scissors at mid-length, and close once. Check the result before cutting again.
4. Don't over-thin. You can always take more out, but you can't put it back. Start conservative and build up.
5. Point the scissors downward. Angling the thinning scissors down (towards the ends) creates a more natural finish than cutting straight across.
6. Avoid thinning fine hair. Fine or thin hair rarely needs thinning scissors. Over-thinning fine hair creates wispy, see-through ends that look damaged.

Thinning Scissors Maintenance

Thinning scissors need the same care as cutting scissors:

• Oil daily — one drop at the pivot before your first client. How to oil properly.
• Check tension regularly — adjust tension so blades close smoothly without catching.
• Professional sharpening — thinning scissors require a specialist sharpener who understands toothed blades. Each tooth must be individually addressed. Full sharpening guide.
• Clean after every client — hair fragments lodge between teeth and cause dragging if not removed.

Thinning scissors typically need sharpening slightly less often than cutting scissors because each tooth does less work per cut. But don't neglect them — dull thinning scissors pull and damage hair just as badly as dull cutting scissors. Learn how often to sharpen.

ShearGenius Thinning Scissors

Our thinning scissors are built to the same standard as our cutting range — Japanese steel, dual bearing flat tension system, and personally inspected by a scissorsmith with decades of hairdressing experience.

Browse our full scissors range including thinning options, or explore scissor bundles that pair cutting and thinning scissors at a better price.

Want to spread the cost? SlicePay lets you pay over 20 weekly instalments with zero interest.

Need your existing thinning scissors sharpened? We offer on-route mobile sharpening across VIC and TAS — every tooth re-ground and polished individually at the van.

Thinning Scissors FAQ: Which Thinner for Which Job

Which thinning scissors should I buy for everyday salon blending?

For everyday salon blending, the ShearGenius Geisha Professional Hairdressing Thinning Scissor ($395) is the pick: a 30-tooth Japanese Cobalt Alloy blade that releases an even, moderate share of the hair caught per closure. Thirty teeth is the all-rounder count — enough removal for thick hair, fine enough that the blend never shows.

Which thinning scissors are best for fine or coloured hair?

For fine or coloured hair, use a higher tooth count so the blend stays invisible: the ShearGenius Vampire 35 Professional Hairdressing Thinner ($480) runs a 35-tooth Japanese Cobalt Alloy blade and releases a light share of the hair caught per closure. The ShearGenius Jada 35 Thinner ($400) is the same 35-tooth blade spec at a lower price of entry.

Which scissors remove the most bulk from very thick hair?

For the heaviest bulk removal, the ShearGenius Dracula 10 Professional Hairdressing Channeller ($695) carves with ten wide-set Japanese Cobalt Alloy teeth and takes a heavy share of the hair caught per closure. The ShearGenius Jada 16 Channeller ($400) does the same job with 16 teeth, for pronounced texture where the visible channels are the design intent.

What is the difference between a thinner, a texturiser and a channeller?

A thinner blends weight away invisibly at 30 to 35 teeth: the ShearGenius Geisha Thinner ($395) and the ShearGenius Vampire 35 Thinner ($480). A texturiser takes more weight per closure while keeping the blend soft at 26 teeth: the ShearGenius Prodigy Texturiser ($495) and the ShearGenius Vampire 26 Texturiser ($480). A channeller cuts channels of negative space so the remaining hair moves, on 10 to 16 wide-set teeth: the ShearGenius Dracula 10 Channeller ($695) and the ShearGenius Jada 16 Channeller ($400).

Which left-handed thinning scissors does ShearGenius make?

ShearGenius builds two left-handed thinners, both built left from the start rather than a flipped right-hander: the ShearGenius Geisha Left-Handed Thinner ($395) in 5.5, 6.0 and 6.5 inch, and the ShearGenius Young Genius Left-Handed Thinner ($250) with a 30-tooth Japanese Cobalt Alloy blade at 58 HRC.

How many teeth should my first thinning scissor have?

Start at 28 to 35 teeth — enough removal for thick hair, fine enough for finishing work. At 30 teeth the ShearGenius Geisha Thinning Scissor ($395) is the safest first choice, and the ShearGenius Young Genius Thinner ($250) is the Apprentice Range option at the honest price of entry.

Can I buy a matched cutting scissor and thinner together?

Yes. The ShearGenius Geisha Professional Hairdressing Scissors and Thinner Bundle ($590) pairs a Geisha cutter with its matched Geisha thinner in 5.0, 5.5 and 6.0 inch, both hand-finished on the same bench so they share the same tension and the same feel.

— Matthew Grumley
Founder, ShearGenius