Can Scratches Be Removed From a Phone Screen? What Actually Works (UK)

Short answer: very fine, shallow scratches — the kind you can see but can't feel with a fingernail — can sometimes be reduced in visibility with a glass polishing compound designed for smartphone screens, applied carefully. Deeper scratches you can catch a fingernail on cannot be buffed or polished out without risking further damage, because doing so removes a microscopic layer of the oleophobic coating and glass surface, and toughened phone glass is not designed to be reshaped at home. If a scratch bothers you visually or affects touch response, a screen protector (to stop it happening again) or a full screen replacement (if the damage is already done) are the only reliable fixes.

Why Phone Screen Scratches Are Different From Scratches on Other Glass

Phone screens use chemically strengthened glass (Gorilla Glass, Ceramic Shield, and similar), which gets its toughness from a compression layer created during manufacturing — ions are exchanged near the surface under intense heat to put that layer under permanent compressive stress. This is fundamentally different from the glass in a window or a drinking glass, and it means two things for scratch repair: the glass is genuinely harder to scratch in the first place (hence why deep scratches usually mean something abrasive, like grit or sand, was involved), and any home "polishing" method that removes material from the surface is working against a manufactured compression layer it can't recreate.

The "Fake" Fixes You'll See Recommended Online

• Toothpaste: a very mild abrasive, and testing consistently shows it does close to nothing for a real scratch — any visible improvement is usually just the toothpaste temporarily filling the scratch line, which disappears once wiped clean. It can also leave a slightly hazy finish if left on too long or rubbed too hard.
• Baking soda paste: similarly mild and similarly ineffective on toughened glass; more likely to leave fine surface haze than to remove a scratch.
• Nail polish/clear varnish "fillers": these fill the scratch line rather than repair it, and they're visually inconsistent, prone to yellowing, and can affect touch sensitivity if applied over the display area rather than just the edge.
• Car scratch-repair kits: designed for automotive clear-coat, not toughened glass — different hardness and chemistry entirely; not recommended.

What Might Actually Help (With Real Caveats)

Cerium oxide polishing compounds, sold specifically as smartphone/glass scratch-repair kits, work on a genuine mechanism: they're a fine abrasive that very slightly smooths the glass surface around a shallow scratch, reducing how much it scatters light and therefore how visible it looks. This can produce a real, visible improvement on fine surface scratches — the kind you can see under certain light but can't feel with a fingernail. It does not work on deeper scratches, and the process removes a microscopic amount of the oleophobic coating in the polished area, so it's a genuine trade-off even when it works.

Important limitation: this only ever improves the appearance of shallow scratches. It cannot repair a scratch deep enough to catch a fingernail, cannot fix any scratch that's affected the digitizer's touch response, and carries real risk of making things look worse if applied unevenly or too aggressively.

How to Tell If a Scratch Is "Shallow" or "Deep"

Run a fingernail gently across the scratch at a right angle to its length. If your nail catches or snags on it, the scratch has real depth and polishing compounds won't meaningfully help. If your nail glides over it smoothly and you can only see the scratch under certain lighting angles, it's shallow enough that a careful polishing attempt has a reasonable chance of visible improvement.

When a Scratch Means You Need a New Screen, Not a Repair Attempt

• The scratch catches a fingernail (deep) — no home method will remove this safely.
• Touch response is affected near the scratch — this indicates digitizer-level damage, not just cosmetic surface damage, and polishing does nothing for it.
• There are multiple deep scratches or a scratch has started to spread or crack — this suggests structural weakening of the glass, and continued use risks a full crack.
• The scratch is on a curved edge of the screen — polishing compounds are much harder to apply evenly on a curve and more likely to create a visible flat spot or haze.

In any of these cases, the realistic options are living with the cosmetic mark, fitting a screen protector to stop things getting worse, or replacing the display outright. For iPhone and Google Pixel specifically, our iPhone Screen Replacement Parts and Google Pixel Screen Replacement Parts collections list current UK-stocked OLED and LCD replacements by exact model.

The Cheapest Genuinely Effective Fix: Prevent the Next One

Since deep scratches on toughened phone glass are essentially permanent, the most cost-effective response to a scratched screen — assuming it doesn't bother you enough to justify a full replacement — is fitting a tempered glass screen protector over the existing damage, which stops the scratch from being made worse by continued daily wear and prevents new ones. See our full screen protector comparison guide for how tempered glass, film and privacy options compare.

If You're Considering a Scratch-Repair Kit Anyway

1. Confirm the scratch is genuinely shallow using the fingernail test above — don't attempt this on anything that catches.
2. Clean the screen thoroughly first (see our phone screen cleaning guide) so you're not grinding dust or grit into the glass during polishing.
3. Apply the cerium oxide compound sparingly to a soft microfibre or felt applicator pad, not directly to the screen.
4. Work in small, gentle circular motions over the scratch only, checking progress frequently rather than polishing continuously.
5. Wipe clean and assess — stop as soon as you see improvement, since further polishing only removes more of the coating for diminishing returns.
6. Accept that this will not restore the screen to its original, unscratched finish — it reduces visibility of shallow marks, it does not repair the glass.

Frequently Asked Questions

Can phone screen scratches be removed?

Very fine, shallow scratches can sometimes be made less visible using a cerium oxide polishing compound designed for glass. Deeper scratches that catch a fingernail cannot be safely removed at home — toughened phone glass isn't designed to be reshaped, and attempting it risks making the surface worse.

Does toothpaste remove phone screen scratches?

No. Testing consistently shows toothpaste has little to no real effect on toughened glass scratches; any apparent improvement is usually just toothpaste residue temporarily filling the scratch line.

Can scratches be buffed out of a phone screen?

Shallow surface scratches can sometimes be reduced in visibility with a proper glass polishing compound, at the cost of removing a small amount of the oleophobic coating. Deep scratches cannot be buffed out safely.

How do I know if a scratch on my phone screen is too deep to fix?

Run a fingernail gently across it at a right angle. If your nail catches or snags, the scratch has real depth and no home method will remove it. If your nail glides smoothly over it and it's only visible at certain angles, it may respond to careful polishing.

Will a screen protector hide an existing scratch?

A screen protector sits on top of the existing scratch and won't hide it if the scratch is on the phone's actual glass underneath — it will, however, stop the scratch from worsening and prevent new ones from forming.

What should I do if my phone screen has a scratch that bothers me?

For a shallow scratch, a careful cerium oxide polish may reduce its visibility. For a deep scratch, or one affecting touch response, fitting a screen protector to prevent further damage or replacing the screen outright are the only reliable options.