Excellent 4.8/5 (3347 Reviews)

Once & Clean - LimeShield™

Forget scrubbing. Let your toilet clean itself.

Drop LimeShield into your cistern and say goodbye to the toilet brush. The advanced technology alters hard water before it hits the bowl, stopping yellow rings and trapped odours from forming in the first place. Enjoy a perfectly clean bathroom 24/7, with zero physical effort.

£32.99 £42.99 SAVE 23%

Active Ion-Shield™ Technology
Odour & Stain Defence
100% Bleach & Chemical-Free
Drop it in once. Forget for years

Premium Shipping Included
Chloe M.
Chloe M.

I was a bit skeptical that this would work. However, to my great surprise, it REALLY keeps the water from staining the toilet bowl. I haven’t cleaned my toilet in 2 weeks. Any other time, there would be slime or those rusty looking stains on the bowl. Not with this product. My bowl is completely clean. I’ve been telling everyone to get this.

They've finally ditched the toilet brush.

Join over 5,700 UK households who have banished stubborn limescale and odours with Once & Clean™ LimeShield.

Excellent 4.8/5 (3347 Reviews)

Total protection for your entire toilet system.

Discover how the Active Ion-Shield™ transforms your bathroom without lifting a finger.

SPARKLING CLEAN BOWL

Say goodbye to the weekend scrubbing. By altering the molecular structure of hard water minerals, our technology prevents that stubborn yellow limescale ring from ever forming. Your toilet stays looking brand new, flush after flush.

Key Benefits

  • Zero Scrubbing Required: Let the Active Ion-Shield™ do the hard work for you.
  • Prevents Yellow Rings: Stops calcium build-up before it can stick to the ceramic.
  • Flush & Forget: Constant protection 24 hours a day.

A CLEANER CISTERN

The tank is often the dirtiest part of the toilet, secretly filled with brown sludge and hard water deposits. LimeShield works right at the source, breaking down these deposits to ensure only clean, treated water enters the bowl.

Key Benefits

  • Cleans the Unseen: Removes brown sludge and mineral build-up from the tank.
  • Protects Internal Parts: Prevents limescale from damaging your flush mechanism.
  • Crystal Clear Water: Ensures every single flush uses purified and treated water.

NATURAL ODOUR DEFENCE

Limescale acts like a sponge for bacteria and waste, which is the root cause of bad bathroom smells. By eliminating the porous limescale, you destroy the bacteria's breeding ground, keeping your bathroom smelling fresh naturally.

Key Benefits

  • Targets the Root Cause: Stops odours by removing the exact place where bacteria hide.
  • No Artificial Fragrances: Freshens the room without masking smells with strong chemicals.
  • Hygienic Surface: Leaves the ceramic smooth thus preventing waste from sticking.

100% TOXIN-FREE

Traditional toilet blocks rely on harsh bleaches and toxic chemicals that are harmful to inhale and dangerous for pets. Our physical ion-altering technology achieves better results without a single drop of poison.

Key Benefits

  • Safe for Thirsty Pets: Completely harmless if your dog or cat accidentally drinks from the bowl.
  • No Toxic Fumes: Breathe easy without the harsh smell of bleach in your home.
  • Septic Tank Friendly: Won't disrupt the natural and necessary bacteria in septic systems.

Enjoy a perpetually clean toilet, zero elbow grease required.

Imagine never having to scrub that embarrassing yellow ring again. Drop LimeShield into your cistern just once, and wake up to a fresh, guest-ready bathroom every single day, without exposing your yourself and your family to toxic bleach fumes.

Enjoy a perpetually clean toilet, zero elbow grease required.

Imagine never having to scrub that embarrassing yellow ring again. Drop LimeShield into your cistern just once, and wake up to a fresh, guest-ready bathroom every single day, without exposing your yourself and your family to toxic bleach fumes.

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Years of Freedom on a Flask

Stop throwing money at blue supermarket blocks that vanish in a week. One single LimeShield protects your toilet from hard water build-up for years, paying for itself in months.

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Toxin-Free. Breath Easy

Ditch the harsh chemicals. Our Active Ion-Shield™ works physically, not chemically. It’s completely safe for your plumbing, septic tanks, and even if the family dog decides to take a sneaky drink.

Results You Can Actually See

Watch the stubborn limescale stop in its tracks.

We are so confident you'll love the results that we give you a 30-Day Risk-Free Trial. If your bowl isn't noticeably cleaner, you get your money back. No questions asked.

A sparkling clean toilet in 3 simple steps.

Insert the Active Core

Insert the Active Core

Simply place the blue Active Ion-Shield™ block into the protective casing. This durable, eco-friendly shell controls the water flow perfectly, ensuring your limescale protection lasts for years instead of just washing away in a few weeks like traditional toilet blocks.

Drop it in the Cistern

Drop it in the Cistern

Remove the lid of your toilet cistern and carefully place the LimeShield inside, resting it on the bottom away from the moving flush mechanism. No tools, no expensive plumbers, and no messy chemicals required. It really is the ultimate 'fit and forget' solution.

Flush & Forget

Flush & Forget

That’s it! With every flush, the treated water works automatically to prevent stubborn limescale and bacteria from clinging to the ceramic. Enjoy a brilliantly clean, fresh-smelling bathroom without ever having to scrub with harsh bleach again.

Insert the Active Core

Insert the Active Core

Simply place the blue Active Ion-Shield™ block into the protective casing. This durable, eco-friendly shell controls the water flow perfectly, ensuring your limescale protection lasts for years instead of just washing away in a few weeks like traditional toilet blocks.

Drop it in the Cistern

Drop it in the Cistern

Remove the lid of your toilet cistern and carefully place the LimeShield inside, resting it on the bottom away from the moving flush mechanism. No tools, no expensive plumbers, and no messy chemicals required. It really is the ultimate 'fit and forget' solution.

Flush & Forget

Flush & Forget

That’s it! With every flush, the treated water works automatically to prevent stubborn limescale and bacteria from clinging to the ceramic. Enjoy a brilliantly clean, fresh-smelling bathroom without ever having to scrub with harsh bleach again.

No scrubbing, no bleach, just results.

From embarrassing hard water stains to a guest-ready shine. Slide the image below to see how our Active Ion-Shield™ restores your toilet bowl naturally.

After 30 Days
After 30 Days
Before LimeShield
Before LimeShield
↔ Slide to see the difference

More than just a clean toilet.

Stop letting limescale ruin your weekends and your peace of mind. Here is what happens when you switch to LimeShield.

Never Scrub Again

Reclaim your weekends. Say goodbye to kneeling on the bathroom floor scrubbing that stubborn hard water ring. Let LimeShield do the heavy lifting automatically with every flush.

Save £££ Every Year

Stop pouring money down the drain. One LimeShield replaces dozens of expensive toilet blocks and bottles of thick bleach, easily paying for itself in a matter of months.

Always Guest-Ready

No more panic-cleaning when friends or family pop over unannounced. Enjoy the confidence of a consistently pristine, fresh-smelling bathroom you can always be proud of.

Banish Lingering Odours

Limescale acts like a sponge for bacteria, which is why some bathrooms always smell a bit 'off' no matter how much you clean. Eliminate the limescale, and you eliminate the source of the bad smell for good.

Why LimeShield isthe smart choice?

Stop pouring money down the drain. Ditch the toxic chemicals and choose the smart way to beat UK hard water.

Why LimeShield isthe smart choice?

Stop pouring money down the drain. Ditch the toxic chemicals and choose the smart way to beat UK hard water.

LimeShield™
Traditional Cleaners
Lifespan
Up to 3 Years Run out in days or weeks
Effort Required
Zero (Flush & Forget) Endless scrubbing & replacing
Safety & Health
100% Pet & Family Safe Toxic fumes & harsh chemicals
Plumbing Care
Protects internal parts Corrodes mechanisms over time
Action on Limescale
Prevents build-up Just temporarily masks the stains

Finally, a bathroom that takes care of itself.

Finally, a bathroom that

Turn every flush into a cleaning cycle.

Your toilet now works for you, not the other way around.
Instead of feeling frustrated every time you see a new hard water mark forming, you can relax knowing the Active Ion-Shield™ is constantly at work. Every time you press the button, the treated water coats the ceramic, actively repelling minerals. It’s the ultimate "set it and forget it" upgrade for your home.

Step away from the toxic bleach aisle.

Enjoy a fresh space without the chemical headache.
Think about how unpleasant it is to hold your breath while pouring thick, stinging liquids down the drain just to make things look clean. Now, you can walk into a bathroom that smells naturally fresh and feels hygienic, entirely free from the aggressive fumes of traditional cleaning products.

Keep your porcelain looking brand new.

Keep your porcelain looking brand new.
Limescale doesn't just look bad; it physically etches into your toilet's surface over time, making the ceramic look permanently dull, yellowed, and old. By neutralizing the minerals before they can bond, you preserve that bright, glossy, premium finish you fell in love with on day one.

Real results from UK hard water areas.

No stock photos or exaggerated claims. Just real customers who have finally banished stubborn limescale and ditched the toilet brush for good.

I WANT A SPARKLING TOILET
Rated 4.8/5 by over 3,500 UK households.

Frequently Asked Questions

Does it really work, or is it just another gimmick? +


It genuinely works. Unlike chemical cleaners that just bleach the stains white temporarily, LimeShield uses Active Ion-Shield™ technology to physically alter the calcium in your tap water, preventing limescale from sticking to the bowl. Plus, you’re fully protected by our 30-Day Money-Back Guarantee. If you don't see the difference, you get a full refund.

Is it safe for my plumbing and septic tank? +


100% safe. Because it is completely free from harsh chemicals, bleach, and toxins, it will never corrode your internal flush mechanisms or rubber seals. It is also completely safe for septic tanks and homes with pets.

Will it fit my specific toilet? +


Yes! LimeShield is designed to fit 99% of standard UK toilet cisterns (tanks). As long as you can lift the lid of your cistern, simply drop the device into the water, keeping it clear of the moving flush mechanism.

Does it require batteries or electricity? +


Not at all. LimeShield relies entirely on passive magnetic and ionic technology to treat the water. There are no batteries to change, no wires, and absolutely zero maintenance required.

Do I need to do anything after dropping it in? +


Nope! It is the ultimate "fit and forget" solution. Once you drop it in the tank, it works automatically with every single flush, 24 hours a day, providing continuous protection for up to 3 years.

How quickly will I see results? +


LimeShield starts treating your water immediately. For the best results, we recommend giving your toilet bowl one final, thorough scrub before dropping the device in. From that day forward, LimeShield will actively prevent new limescale and yellow rings from forming.

Why is this better than supermarket toilet blocks? +


Supermarket rim blocks and liquids run out in a matter of weeks, meaning you constantly have to buy more and fish out dirty plastic cages. LimeShield lasts up to 3 years, saves you money, involves zero harsh chemicals, and stops limescale at the source rather than just masking the problem.

Will it make my bathroom smell better? +


Absolutely. While LimeShield doesn't release artificial perfumes, it eliminates the porous limescale where odour-causing bacteria breed and multiply. By keeping the ceramic smooth and bacteria-free, your bathroom stays naturally fresh without smelling like a chemical factory.

Try it in your home for 30 days. The 100% Limescale-Free Guarantee.

Drop LimeShield into your toilet cistern and let it work for a full 30 days. If you still find yourself scrubbing stubborn yellow rings, or if your bowl isn't noticeably cleaner and fresher, simply return it. We will refund 100% of your money. No questions asked and no hidden fine print.

CLAIM MY RISK-FREE TRIAL
30-Day Home Trial
Fast Tracked UK Delivery
No-Quibble Returns

Try it in your home for 30 days. The 100% Limescale-Free Guarantee.

Drop LimeShield into your toilet cistern and let it work for a full 30 days. If you still find yourself scrubbing stubborn yellow rings, or if your bowl isn't noticeably cleaner and fresher, simply return it. We will refund 100% of your money. No questions asked and no hidden fine print.

CLAIM MY RISK-FREE TRIAL
30-Day Home Trial
Fast Tracked UK Delivery
No-Quibble Returns