Do I still need to use a bleach whitening detergent with Sensitive Laundry Liquid?Updated a day 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.
Do I need bleach whiteners?
✓ 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.
⚠ 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.
✓ Best practice for whites
✓ Wash whites separately from coloureds when possible
✓ Don't overload the machine, fabrics need water flow to rinse properly
✓ Always follow garment care labels
Around 60 washes per box. Sensitive Choice approved, Dermatest tested. Septic and greywater safe.
New at Koh?
Sensitive Laundry Starter Kit pairs Sensitive Laundry Liquid with a Laundry Pump for easy dosing.
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Last reviewed: July 2026 · Koh UK