CLR · limescale & rust remover
CLR Calcium, Lime & Rust Remover Review
Multi-surface remover that dissolves calcium, lime and rust deposits.
CLR Calcium, Lime & Rust Remover is the multi-surface descaling classic: one liquid that dissolves calcium, lime and rust deposits from metal, ceramic, glass and more. Where a general cleaner just polishes, CLR actually removes the deposit — which is why it has become the default answer for showerheads, faucets and kettles.
This assessment is research-based from manufacturer information and owner feedback; our team has not lab-tested this product.
Homes with hard water and the white scale it leaves, anyone restoring showerheads and faucets, and households that want one descaling chemistry for both bathroom and appliance scale.
Key features we assessed
- Dissolves calcium, lime and rust in one product
- Works on metal, ceramic, glass and more
- Restores showerheads, faucets, kettles and drains
- Can be poured, sprayed or used as a soak
- The default brand name for descaling chemistry
- Useful for both household and appliance scale
Strengths
It does what a cleaner can't — dissolves the deposit rather than wiping around it, restoring flow and shine.
Versatility is real: bathroom fixtures, kitchen appliances and laundry all fall under one bottle.
Weaknesses
It's acid chemistry, so surface compatibility matters — check labels for natural stone, aluminium and specialty coatings.
Strong products need gloves, ventilation and careful rinsing.
Value
Relatively cheap per use and it replaces several single-purpose descalers — good value for genuinely hard-water homes.
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Check Current Price on AmazonThe bottom line
The honest descaling workhorse — it removes deposits instead of polishing them. Read the label, wear gloves, and your showerheads and faucets will act brand new.
Frequently asked questions
Will CLR work on my showerhead?
Yes — soak the head (often by soaking in a bag tied around it) and the mineral deposits dissolve back to full flow.
Is it safe on all metals?
No — check the label for aluminium, natural stone and specialty finishes, and always test an inconspicuous spot.
Can I use it in the kettle?
Yes for scale, but rinse thoroughly and, for anything food-contact or appliance, follow the label's rinse guidance carefully.
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