Gel Brush Hard or Frayed? How to Clean, Save and Store Nail Brushes
By Edmond Lin, M1 Nail & Beauty Supply, Markham, Ontario. Last updated 17 October 2026. Product directions are the makers' own, read from their labels and product information; technique and care advice is general salon practice.
When a nail brush goes hard or frays, the cause is usually gel curing inside the bristles or cleaning with the wrong liquid. Clean gel brushes with clear gel and a lint-free wipe, keep acetone and remover away from them, and keep them away from the lamp. Acrylic brushes are a different case: they are cleaned with monomer and, when product builds up, a brush cleaner. A brush that is only stiff can usually be softened. A brush with fully cured gel in the bristles rarely recovers.
In this guide
- Why brushes go hard, fray or shed
- How to clean a gel brush after every use
- How to soften a stiff gel brush
- How to fix a bent or splayed tip
- How to clean an acrylic brush
- Liners, polish brushes and dip liquid brushes
- Before you use a new brush
- How to store nail brushes
- What to keep at your table
- Frequently asked questions
Why brushes go hard, fray or shed
| Problem | Usual cause | What to do |
|---|---|---|
| Gel brush is stiff or hard | Gel left in the bristles cured under the lamp or in daylight | Work clear gel through it (see below). Fully cured gel rarely comes out. |
| Bristles splay or fray | Acetone or remover, rough wiping, pressing the brush flat against the nail, product packed into the ferrule | Change how you clean; reshape with clear gel; for a bent tip, hot (not boiling) water |
| Liner gets thinner over time | Pulling and squeezing the hairs while cleaning, so they break or come out | Pat and stroke from the ferrule to the tip; never pull the hairs |
| Acrylic brush is crusty or hard | Acrylic left to set in the bristles between beads or at the end of the day | Clean in monomer as you work; use a brush cleaner for build-up |
| Brush sheds hairs | A loose hair or two is common at first; steady shedding usually means the hairs are not held firmly in the ferrule | If it keeps shedding after correct cleaning, contact the seller |
How to clean a gel brush after every use
Gel brushes are cleaned with gel, not with a solvent. Uncured gel mixes with other uncured gel, so clear gel or base coat carries the colour out of the bristles without drying them. The same method works for brushes used with colour gel, builder gel and painting gel.
- Wipe out the colour. Press the brush gently onto a lint-free wipe and draw it towards the tip, turning it over a few times. Do not drag it against the grain.
- Work clear gel through it. Put a drop of clear gel or gel base coat on a palette. Pat the brush into it on both sides, so the clear gel reaches the inside of the bristles.
- Wipe again. Repeat until the wipe comes away clear. After a dark colour or glitter this can take two or three rounds.
- Reshape and leave a thin film of clear gel. Draw the tip back into shape with your fingers. A little clear gel left in the bristles holds the shape and keeps out dust.
- Cap it and move it away from the lamp. Keep it out of window light too: daylight cures gel as well.
Between colours in the same set, a thorough wipe is usually enough. Before a white or a pale shade, work clear gel through as well, because leftover colour shows most on light gel.
How to soften a stiff gel brush
A brush that has gone stiff but still bends usually has gel that has thickened or partly set, not fully cured. It can often be brought back:
- Put a generous drop of clear gel or base on a palette.
- Pat the brush into it, turning it over each time, for a minute or two. Work from the ferrule towards the tip, never against the grain.
- Wipe it on a lint-free wipe and check the bristles. Repeat until they move freely again.
- Reshape it, leave a thin film of clear gel in it and cap it.
If the bristles are rock-hard and do not bend at all, the gel inside has fully cured. Clear gel will not dissolve it. Some specialist cleansers are sold for cured gel, but they are harsh on the bristles, and a brush in this state usually has to be replaced. To stop it happening again, cap brushes and keep them well away from the lamp and the window.
How to fix a bent or splayed tip
- Bent tip: clean the brush first. Then dip only the bristles, not the ferrule, into hot tap water (not boiling) for a few seconds. Reshape the tip with your fingers and lay the brush flat until it is completely dry. Gel and water do not mix, so never go back into gel with a damp brush. Natural-hair brushes such as kolinsky do not tolerate heat well, so do not use this method on them.
- One or two stray hairs: snip each one at its base with small, sharp scissors. Never cut across the tip to tidy it up, because that blunts the point.
- Bristles spread out after cleaning: work a little clear gel through, draw the tip into shape and cap it. Most splaying comes from acetone or remover, so check what the brush has been cleaned with.
How to clean an acrylic brush
Acrylic brushes are cleaned with liquid, because acrylic sets by itself rather than under a lamp.
- While you work: wipe the brush on a lint-free wipe after each bead and dip it in clean monomer, so no acrylic can set in the bristles.
- At the end of the service: rinse in clean monomer, wipe, reshape the tip and lay the brush flat to dry.
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When product has built up: use a brush cleaner. Pour a little into a dappen dish, work the brush gently until the build-up releases, wipe it on a lint-free pad and reshape it. The three we stock differ in strength:
- ibd Brush Cleaner: ibd says it contains conditioning additives and does not contaminate acrylic.
- SuperNail Brush Cleaner: made for sculpting brushes; SuperNail says it uses less acetone, with added conditioners.
- BeBeauty Brush Cleaner: a stronger solvent (acetone, ethyl and butyl acetate, ethanol) in 8, 16 and 32 oz bottles, for heavy build-up.
- Do not leave the brush standing in cleaner. ibd and BeBeauty both say a short dip and swirl is enough. BeBeauty also advises a glass or metal dish, because the acetone softens many plastics. Let the brush dry completely before the next client.
Brush cleaners are flammable solvents. Keep them away from heat and open flame, work with ventilation and close the bottle after use.
Liners, polish brushes and dip liquid brushes
- Liners and detail brushes have so few hairs that every lost one shows. Clean them like a gel brush, but with a lighter touch: pat them, don't press, and never pull the hairs between your fingers. Cap them straight away.
- Brushes used with regular nail polish are cleaned in polish remover, so keep them separate from your gel brushes. Mark them, or buy a different handle colour.
- Dip liquid brushes harden when loose powder is carried back into the bottle, or when a base or finish brush touches wet activator. For NuGenesis liquids, NuGenesis Brush Cleaner is made for this. NuGenesis says to stand the hard brush in it for at least 15 minutes, wipe it on a dry lint-free wipe without pulling the bristles, and soak another 5 to 10 minutes if it is still stiff.
Before you use a new brush
Many new brushes arrive with the bristles stiffened to protect their shape in the box. Before first use, gently roll the tip between your fingers to loosen it. For a gel brush, then work a little clear gel through it and wipe it. For an acrylic brush, follow the brush maker's directions: many say to rinse it in monomer before first use. If you are still choosing brushes, see Nail Art Brushes for Beginners: The 5 You Actually Need.
How to store nail brushes
- Keep them capped and out of the light. A gel brush left uncapped near the lamp or in a sunny spot will cure.
- Never rest a brush on its tip. Lay brushes flat, or stand them in a holder with the bristles off the surface. A brush holder or brush stand keeps them in one place on the table.
- Let brushes dry before you put them away. Liquid that sits in the ferrule can loosen the hairs over time. This matters most for acrylic brushes after monomer or cleaner, and for any brush you have reshaped with water.
- Store them away from dust and filings. Dust caught in a gel brush ends up in the next manicure.
What to keep at your table
| Item | Used for | At M1 |
|---|---|---|
| Lint-free wipes | Wiping every kind of brush without leaving fibres | Staleks Pro Expert Lint-Free Nail Wipes, all cotton and cleaning pads |
| Clear gel or gel base | Cleaning, softening and reshaping gel brushes | Gel base coats |
| Brush cleaner | Acrylic build-up (not for gel brushes) | ibd, SuperNail, BeBeauty |
| Brush cleaning cup | Rinsing brushes; the residue settles under a strainer plate | JING Brush Cleaning Container, all containers |
| Brush holder or stand | Keeping bristles off the table while you work | Acrylic Nail Brush Holder, Bowtie Brush Holder, Nail Brush Stand |
Browse the category: Nail Brushes. More: Acrylic Brushes, Cleansers, Storage & Organizers.
Frequently asked questions
Can I clean gel brushes with acetone or polish remover?
No. Acetone and remover dry out the bristles and make them splay. Clean gel brushes with clear gel or gel base and a lint-free wipe.
Can I use alcohol to clean a gel brush?
Avoid it. Alcohol also dries the bristles, especially if the brush is left to soak. Clear gel does the same job more gently.
Why did my gel brush go hard overnight?
Gel left in the bristles cured. The usual causes are leaving the brush uncapped near the lamp or in daylight from a window. If it still bends, soften it with clear gel. If it is rock-hard, the gel has fully cured and the brush usually has to be replaced.
Can I use acrylic brush cleaner on a gel brush?
No. Brush cleaners are acetone-based solvents made for acrylic brushes, and they will dry out a gel brush. Use clear gel instead.
How often should I clean my brushes?
Wipe gel brushes between colours, and work clear gel through them at the end of each use. Acrylic brushes are wiped and dipped in monomer throughout the service and rinsed at the end. Use a brush cleaner only when product has built up, not every day: frequent solvent cleaning dries the bristles.
Why does my liner get thinner every time I clean it?
Hairs are breaking or coming out during cleaning, usually because the brush is squeezed or pulled through the fingers or a wipe. Pat it clean and stroke from the ferrule to the tip only.
My new acrylic brush is losing hairs. Is that normal?
A loose hair or two in the first few uses can happen. If it keeps shedding after you have cleaned it as the maker directs, the hairs may not be held firmly in the ferrule. Stop using it and contact the seller.
Shop: all nail brushes, acrylic brushes, brush cleaners, lint-free wipes.
See the nail brushes and brush care supplies we stock in Markham, Ontario.
Shop nail brushesProduct directions quoted here are the manufacturers' own (ibd, SuperNail, BeBeauty, NuGenesis). Technique and care advice is general salon practice. Always follow the directions and warnings on the product you are using.
