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What are the ingredients in Universal Cleaner?Updated 6 hours ago

TL;DR: Universal Cleaner contains two ingredients: potassium hydroxide and reverse osmosis water. Formulated at pH 12.5 with an 18-month shelf life from manufacture. Allergy UK certified, fragrance-free, cruelty-free, and shipped across the UK from Koh UK.


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Koh Universal Cleaner product features
Koh Universal Cleaner safe two-ingredient formula

What is in Universal Cleaner?

Koh Universal Cleaner has only two ingredients: potassium hydroxide and reverse osmosis water. Potassium hydroxide is an alkali degreaser that saponifies fats and oils, lifting tough grease and baked-on grime. Reverse osmosis water is the ultra-pure solvent that delivers a clean, streak-free finish without mineral residue. The simplicity of the formula is what allows Koh Universal Cleaner to clear independent allergy thresholds, including Allergy UK certification.

✓ Potassium hydroxide

Alkali degreaser. Saponifies fats and oils into soap, lifting tough grease and baked-on grime. Does the cleaning work.

Alkali degreaser Saponifies fats

✓ Reverse osmosis water

Ultra-pure solvent. Free of contaminants so no residue is left behind on surfaces. Delivers the streak-free finish.

Ultra-pure Streak-free

What's the pH and shelf life of Universal Cleaner?

Koh Universal Cleaner is formulated at pH 12.5, which is alkaline. This pH cuts grease and organic soil without scrubbing. Shelf life is 18 months from date of manufacture, sealed and stored properly. Store in a cool, sealed, shaded location, out of direct sunlight. Don't freeze and avoid extreme heat.

pH level

12.5

Alkaline. Cuts grease and organic soil without scrubbing.

Shelf life

18 months

From date of manufacture, sealed and stored properly.

Storage

Cool, sealed, shaded

Out of direct sunlight. Don't freeze or expose to extreme heat.

What certifications does Universal Cleaner have?

Koh Universal Cleaner is certified by Allergy UK. The two-ingredient formula is fragrance-free, cruelty-free, and not tested on animals. It's pet-friendly, kid-friendly, and family-friendly. Formulated and manufactured in Australia, shipped across the UK from Koh UK. The simplicity of the two-ingredient formula is what lets Universal Cleaner clear independent allergy thresholds.

✓ Certified and tested

Allergy UK certified. Fragrance-free formula, cruelty-free, and not tested on animals. Pet-friendly, kid-friendly, and family-friendly.

Allergy UK certified Cruelty-free Fragrance-free Family-friendly

✓ Made in Australia, shipped to the UK

Formulated and manufactured in Australia. Shipped across the UK from Koh UK. The simplicity of the two-ingredient formula is what lets Universal Cleaner clear independent allergy thresholds.

Made in Australia UK delivery Two-ingredient

Where can I find the Safety Data Sheet?

The Universal Cleaner Safety Data Sheet (SDS) covers composition, physical properties, handling, storage, disposal, and emergency response for regulatory and workplace safety compliance. Most home users never need to open it, but it's available anytime as a PDF download for compliance, workplace safety officers, or anyone who wants the full technical sheet.

✓ Access Universal Cleaner SDS

The Safety Data Sheet covers composition, physical properties, handling, storage, disposal, and emergency response for regulatory and workplace safety compliance. Most customers never need to open it, but it's available anytime.

Download SDS PDF
Koh Universal Cleaner 2L

Universal Cleaner

2L bag-in-box refill. The same two-ingredient formula in our most popular size. Approximately 3 months of cleaning for the average home.

Browse all Universal Cleaner products

Last reviewed: May 2026 · Koh UK

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