Is Bathroom & Shower Cleaner fragrance-free?Updated a day ago
TL;DR: Bathroom & Shower Cleaner has no added fragrance. No perfumes, no masking scents, no synthetic fragrance ingredients. It isn't scentless though: ethanol is in the formula and carries a light clean scent while you spray, which clears as the surface dries. If you'd like a scent of your own, 2 to 3 drops of a mild essential oil in your Foaming Spray Bottle does it. Never citrus oils, they degrade the foamer mechanism.
Is Bathroom & Shower Cleaner fragrance-free?
✓ No added fragrance
No perfumes. No masking agents. No synthetic fragrance ingredients. That absence is part of what the Sensitive Choice approval from the National Asthma Council Australia is built on, and it is why fragrance-sensitive households tend to land on this one.
Will I still smell anything?
⚠ Fragrance-free isn't the same as scentless
There's no added fragrance, but there is a scent. Ethanol is in the formula and it carries a light clean smell while you're spraying.
It clears as the surface dries, and nothing perfumed is left behind. Open a window or run the extractor fan while you clean and the room airs out faster.
Does no added fragrance make it better for asthma or allergies?
⚠ People vary, so here's what this rests on
Added fragrance is one of the most commonly reported triggers in household cleaning products, and leaving it out is a real part of why this product suits fragrance-sensitive homes. Everyone reacts differently though, and no cleaning product can promise nobody will ever react.
In general it's a safer choice for a fragrance-sensitive household than a perfumed bathroom spray, and here's what that rests on: Sensitive Choice approved by the National Asthma Council Australia, Dermatest tested, recognised by the Eczema Association of Australasia, GECA certified. Ethanol is the one scent-carrying ingredient in the formula, and it's worth reading the full ingredient list before first use.
Can I add a scent myself?
✓ How to add a light scent
Fill the foamer. Mix Bathroom & Shower Cleaner in your Foaming Spray Bottle as normal.
Add 2 to 3 drops of essential oil. Lavender and eucalyptus are the two that suit the mechanism best. Don't go over 3 drops per fill, or you risk a clogged nozzle and oily residue on surfaces.
Swirl gently. Combine without shaking hard, because that creates pre-foam and can block the nozzle.
⚠ The certifications cover the cleaner as supplied
One thing to know before you reach for a bottle of oil. The Sensitive Choice approval, the Dermatest testing, the Eczema Association recognition and the GECA certification all apply to Bathroom & Shower Cleaner the way it comes. Add an oil of your own, whether it's a Koh one or another brand's, and those cover the cleaner, not the mixture you've made.
Essential oils are a common trigger in their own right. If anyone in your home is managing asthma, allergies or fragrance sensitivity, skip this step and leave the formula as it is.
Why can't I use citrus oils?
⚠ Citrus oils damage the foamer
Lemon, orange, bergamot, lime and grapefruit all carry d-limonene and other terpene solvents. Those swell and degrade the plastic and rubber seals inside the foamer. Sluggish spray comes first, then a sticking trigger, then leaks, and eventually the mechanism gives up. Lavender and eucalyptus are far gentler on the plastics, which is why they're the two we point people at.
If you want a citrus scent in the bathroom, run it through a diffuser rather than the foamer.
What do I do if the nozzle feels sluggish?
✓ Clear a sluggish foamer
Empty and refill with warm water. Tip out any remaining product, then fill with clean warm water.
Spray through the head 10 to 15 times. That clears oil residue and product build-up out of the mechanism.
Refill and test. Still sluggish after a proper flush and the mechanism is likely degraded, usually from citrus oils. Replacement Foaming Spray Bottles are on the Koh site.
The foaming pump bottle Bathroom & Shower Cleaner is mixed in. Sold on its own as a replacement. Skip citrus oils and it lasts longer.
GECA certified, Sensitive Choice approved, Dermatest tested, Eczema Association recognised. 12 ingredients, pH 8, made in Australia.
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Last reviewed: September 2026 · Koh Australia