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The product looks cloudy or slightly yellow. Still safe to use?Updated 12 days ago

TL;DR: A slight yellow tint or mild cloudiness can happen with Stain Remover. It's normal, safe to use, and doesn't affect cleaning performance.


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Koh Stain Remover
Koh Stain Remover with Foaming Spray Bottle

The product looks cloudy or slightly yellow. Still safe to use?

A slight yellow tint or mild cloudiness can happen with Stain Remover. It's normal, safe to use, and doesn't affect cleaning performance. Natural variation in enzymes and surfactants can give the liquid a faint yellow tone or a little haze. Temperature swings during storage or delivery can also make the formula look cloudy until it settles.

✓ Why it happens

✓ Natural variation in enzymes and surfactants can give the liquid a faint yellow tone or a little haze.

✓ Temperature swings during storage or delivery can also make the formula look cloudy until it settles.

Normal variation Performance unaffected

What should I do?

Shake the bottle gently to remix it. Let it come back to room temperature, then shake again. If you want extra peace of mind, do a quick spot test on a hidden seam before treating the stain.

✓ Quick fix in 3 steps

1

Shake gently to remix.

2

Let the bottle come back to room temperature, then shake again.

3

For extra peace of mind, do a quick spot test on a hidden seam before treating the stain.

Koh Stain Remover

Stain Remover

Spray-on pre-treat for stubborn stains. Spray, wait, then wash.

Koh Stain Remover Starter Kit

New at Koh?

Stain Remover Starter Kit pairs Stain Remover with the Foaming Spray Bottle for targeted application.

Browse all Stain Remover articles

Last reviewed: July 2026 · Koh UK

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