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Do I need bleach whiteners with Sensitive Laundry Liquid?Updated 4 hours ago

TL;DR: Usually no. Surfactants in Sensitive Laundry Liquid keep wash-water soils suspended so they rinse away rather than redeposit on whites and cause greying. No chlorine bleach, no optical brighteners. It's prevention, not restoration, won't reverse existing fabric damage or permanent staining.


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Koh Sensitive Laundry Liquid problem vs solution

Do I need bleach whiteners?

Usually no. Whites typically grey over time because dirty wash water redeposits soil back onto the fabric during the rinse cycle. Conventional whitening boosters address this with chlorine bleach (which oxidises the soil but also weakens fibres over repeated washes) or optical brighteners (which are chemical agents that absorb UV light and re-emit it as visible blue light, making whites look brighter without actually cleaning). Koh Sensitive Laundry Liquid uses surfactants designed to keep soils suspended in the wash water so they rinse away rather than redepositing. The formula contains no chlorine bleach and no optical brighteners. It's a prevention approach, regular use helps keep whites looking cleaner over time but won't reverse existing fabric damage, permanent staining, or yellowing from age. For genuinely dingy or stained whites, you may need a one-off treatment with a dedicated whitening product before resuming regular washing.

✓ Why whites go grey

Dirty wash water redeposits soil back onto fabric during the rinse cycle. Over time this builds up, and whites start looking dull or grey. Most whitening boosters use chlorine bleach (oxidises soil but weakens fibres) or optical brighteners (chemical agents that make whites look brighter under UV light without actually cleaning).

✓ How Sensitive Laundry Liquid handles whites

Surfactants in Sensitive Laundry Liquid keep soils suspended in wash water so they rinse away rather than redepositing on whites. No chlorine bleach, no optical brighteners. Helps keep whites looking cleaner over time without weakening fibres or relying on UV-light tricks.

Anti-redeposition No chlorine bleach No optical brighteners

⚠ Prevention, not restoration

Won't reverse existing fabric damage, permanent stains, or yellowing from age. For genuinely dingy whites, do a one-off treatment with a dedicated whitening product first, then use Sensitive Laundry Liquid regularly to keep them that way.

Won't reverse damage Won't bleach existing stains

✓ Best practice for whites

  Wash whites separately from coloureds when possible

  Don't overload the machine, fabrics need water flow to rinse properly

  Air-dry in sunlight when you can, sunlight is a natural mild whitener

  Always follow garment care labels


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Sensitive Laundry Liquid

Around 60 washes per box. Sensitive Choice approved, Dermatest tested. Septic and grey water safe. Made in Victoria, Australia.

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Last reviewed: May 2026


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