Do Loo Cleaner Tabs have a fragrance?Updated 6 hours ago
TL;DR: No added fragrance. Loo Cleaner Tabs contain no perfumes, no synthetic scents and no masking agents, and the formula is Sensitive Choice approved by the National Asthma Council Australia. You will still notice a faint fizz while the tablet dissolves, which most people describe as mineral, like sparkling water. If you want a scent, add 2 to 3 drops of essential oil to the bowl, never to the cistern.
Do Loo Cleaner Tabs have a fragrance?
✓ Nothing added to cover anything up
No perfumes. No synthetic scents. No masking agents. The oxygen-based formula is low in odour to begin with, so there is nothing to cover up, and the cold water-soluble PVA film around each tablet is unscented as well. Sensitive Choice approved by the National Asthma Council Australia, and certified by Good Environmental Choice Australia (GECA).
On the sensitivity question, people vary, so no cleaner suits every household. In general, a formula with no added fragrance is a safer choice than a heavily perfumed toilet cleaner if someone at home reacts to scent, and the Sensitive Choice approval is the specific substantiation behind that.
What does the bowl smell like while it is cleaning?
✓ A faint fizz, and nothing after the flush
The fizz smells fresh and slightly mineral, close to sparkling water, and it is gone once you flush. If you have come across from a chlorine bleach cleaner, the absence of a strong smell can take a few cleans to read as clean. Bleach trains you to treat scent as proof of a job done. The bowl is still clean, it just does not announce itself.
Can I add my own scent to Loo Cleaner Tabs?
✓ How to add a scent
Drop the tab in the bowl and add 2 to 3 drops of essential oil at the same time.
Let both dissolve and fizz, then scrub the bowl and under the rim.
Leave it to sit, then flush. Two to three drops is plenty. More does not smell stronger and can leave an oily film.
Koh makes three oils that suit the job: Eucalyptus Oil, Lemon Scented Tea Tree Oil and Lavender Calm Essential Oil. Any essential oil you already own works the same way.
Can I put essential oils in the toilet cistern?
⚠ Keep essential oils out of the cistern
Oils do not dissolve in water. They coat the rubber seals, the flapper valve and the fill valve inside the cistern, and those parts degrade or warp over time, which shows up as a leak or a toilet that runs. The tablet itself is fine in the cistern, because it dissolves cleanly in water and rinses through. Oil is the part that does not. Keep oils in the bowl.
No added fragrance. Sensitive Choice approved, GECA certified. Add your own scent in the bowl if you want one.
Citrus-fresh, and the most popular of the three Koh oils for the bowl. 2 to 3 drops alongside the tab.
Koh Perks · earn points on every order
Earn points on every purchase, refer a friend, and redeem for discounts on your next order.
Browse all Loo Cleaner Tabs articles
Last reviewed: September 2026 · Koh Australia