South Africa’s most exciting innovation to hit Cat Litter
A pH-sensitive cat litter for early detection and ultimate peace of mind.
A Proactive Approach to Cat Health

A Proactive Approach to Cat Health
At Marltons, we understand that caring for your cat goes beyond the basics - it’s about providing the very best. That’s why we developed Marltons Micro Crystal Cat Litter with Health Indicator - featuring innovative, colour-changing technology to help you track changes in your cat’s urine pH, giving you peace of mind through early detection of possible urinary issues.
You can trust Marltons to turn an everyday routine into a proactive act of care.
How it works

How it works
Marltons NEW Micro Crystal Cat Litter with Health Indicator is more than just litter – it’s an extra layer of care built into your daily routine.
Using colour-changing pH indicator technology, this litter reacts to your cat’s urine to help detect potential urinary issues early. Using this litter is a simple way to stay one step ahead of your cat’s health.
Early Detection, Ultimate Peace of Mind.

Why you and your cat will love these micro silica crystals:
Ultra Absorbent: Locks in moisture quickly to keep the litter tray dry and fresher for longer.
Advanced Odour Control: Effectively neutralises unpleasant odours by absorbing moisture and locking in smells — helping to keep your home fresher.
Paw Friendly: Soft, fine crystals that are gentle on your cat’s and kittens’ paws.
1 Bag = 1 Month: One 1.5kg bag lasts a single cat up to 30 days — delivering convenience and great value.
Frequently Asked Questions
- Marltons Micro Crystal Cat Litter with Health Indicator is a premium, non-clumping litter made from silica gel.
- It rapidly absorbs moisture, traps odours and minimises bacterial growth.
- It features pH-sensitive dyes that change colour based on the pH levels of your cat’s urine, giving you an early alert to potential urinary health concerns.
- It's a proactive care tool that provides superior odour control, high absorbency and low maintenance.
- Yes. Marltons Micro Crystal Cat Litter with Health Indicator is non-toxic (including pH dyes) and approved for consumer use.
- The fine crystal texture mimics natural sand, making it soft under paws, and ideal for kittens and seniors.
- One bag, one cat, one month.
- Top up after scooping solids and fully replace after 30 days.
- Poor maintenance can affect colour accuracy. If the litter is stretched beyond 30 days, colour changes may not display correctly.
- Always wash, rinse and dry the litter tray before refilling.
- No, this litter is a health monitoring tool only.
- It indicates a change in urinary pH but cannot diagnose illnesses.
- Some cats’ urine pH may vary naturally or be affected by diet or medication.
- If you notice a colour change, monitor it over 24–48 hours and consult your vet for a proper evaluation.
- Early detection through monitoring is a great step towards better outcomes, but medical advice remains essential.
- Yes. Colour remains visible for several hours.
- Stirring daily refreshes surface and maintains accuracy.
- Always fill to 5cm depth.
- This depth prevents pooling, ensures proper absorption and accurate readings.
No. Mixing with other litters will affect both the colour-changing ability and the odour control performance.
Yes. Transition gently:
- Start with 75% Marltons Micro Crystal Cat Litter with Health Indicator and 25% of your cat’s current litter.
- Over a few days, your cat will naturally mix it.
- Move to 100% Marltons the following month for best results.
Note: During transition, colour readings may not be accurate until the litter is fully switched over.
Very effective: The silica crystals lock moisture and odour inside quickly, neutralising smells at the source rather than masking them.
- No, it’s not, and no it won’t – Marltons Micro Crystal Cat Litter with Health Indicator contains a low-dust, low-tracking formula.
- This makes it cleaner for homes and safer for cats’ breathing.
- A colour change is an alert, not an automatic diagnosis.
- Monitor your cat’s litter for 24–48 hours.
If the colour remains outside the normal range or if other symptoms appear, consult your vet. - Hydration, diet or medications can also temporarily affect pH levels.
- Colour typically lasts several hours.
- Stir daily to maintain freshness and monitoring consistent.
- Some medications and diets can impact urine pH.
- A change doesn’t always mean illness but should be discussed with your vet.
- Yes, but for the clearest monitoring, ideally have one tray per cat.
- In multi-cat trays, monitoring individual cat health becomes more difficult.
- Possibly. Some automatic litter boxes are compatible with silica crystals, but many are not.
- If your box scoops or rotates immediately after your cat uses it, it may remove crystals before a colour change occurs.
- No. Dispose of used litter with regular household waste.
- Eco-safe: Naturally breaks down over time, but isn’t flushable or compostable.
Disclaimer: This product is helpful for monitoring and not 100% foolproof or guaranteed. It should not be used as a substitute for professional veterinary advice, diagnosis or treatment. Always consult your vet before introducing any new supplement or treatment to your pet’s routine.