Why Your Scissors Might Be Damaging Hair (And How to Fix It)

Your Scissors Could Be the Problem

If your clients are complaining about split ends, or you're noticing hair folding, bending, or feeling rough after a cut, the issue might not be your technique — it could be your scissors. Here are the most common causes of scissor-related hair damage and exactly what to do about each one.

1. Dull Blades

This is the most common cause of hair damage from scissors. A dull blade doesn't cut cleanly — it compresses and crushes the hair shaft before it severs it, leaving a ragged, damaged end that's prone to splitting.

Signs: Hair folds or bends before cutting, ends look frayed, clients report more split ends than usual.

Fix: Get your scissors professionally sharpened. Our Scissor Sharpening Service will restore your blade to its original edge from £35.

2. Incorrect Tension

If the tension screw is too loose, the blades flex away from each other during cutting instead of meeting cleanly. This causes the scissors to fold hair rather than cut it — even if the blades are sharp.

Signs: Hair folds or pushes away from the blade, cutting feels inconsistent, scissors feel floppy.

Fix: Adjust the tension so the scissors fall to approximately 45 degrees when held vertically by one handle. Foundation Series scissors use a no-key adjustment system for easy on-the-go tension correction.

3. Wrong Blade Type for the Technique

Using a bevelled edge blade for slide cutting, or a thinning scissor for blunt cutting, will produce poor results and can damage hair. Each blade type is designed for specific techniques.

Fix: Match your scissor to your technique. Convex edge blades for slide and precision cutting; thinning scissors for bulk removal; dedicated slicing scissors like the Vasco for slide cutting work.

4. Dirty or Corroded Blades

Product build-up on the blades creates friction and drag during cutting. Over time, this can also lead to micro-corrosion that roughens the blade surface.

Signs: Cutting feels sticky or resistant, blades look discoloured or have visible residue.

Fix: Clean blades thoroughly with isopropyl alcohol and a soft cloth. Oil the pivot point daily. See our full maintenance guide for the full routine.

5. Low-Quality Scissors

Budget scissors made from low-grade steel simply can't hold a fine enough edge to cut cleanly. If you're using scissors without a specified steel grade, this could be the root cause.

Fix: Invest in professional-grade scissors made from 440C steel or above. The Foundation Series offers professional quality at an accessible price — a significant upgrade from budget alternatives.

The Bottom Line

Hair damage from scissors is almost always preventable. Sharp blades, correct tension, proper maintenance, and the right scissor for the job will eliminate the problem entirely — and your clients will notice the difference immediately.