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Why white clothes turn grey, and how to fix it

Whites rarely go grey overnight. It happens a wash at a time, as a little dye from other clothes, a little dirt that settles back on and a little body oil that never quite washes out build up in the fibres. The good news is most of the causes are easy to fix, and many grey whites can be brought back.

Updated 29 October 2026 · 2 min read · By the Luniva team

The usual causes

  • Washing whites with colours

    Even colours that don't bleed obviously release a little dye in every wash.

  • Too little detergent

    Not enough to hold dirt in the water, so it settles back on the fabric. Follow the dose on the pack for your water hardness and how dirty the load is.

  • Too much detergent

    Leftover detergent holds on to dirt and leaves fabric dull and stiff.

  • An overloaded drum

    Clothes need room to move for the wash to get through them.

  • Body oils and sweat

    They build up in collars, cuffs and underarms and trap grey dirt. Treat them before the wash.

    See Pro Formula

  • Always washing cold

    Cool washes save energy and are fine for most loads, but whites that are always washed cold can slowly dull. Use the warmest wash the care label allows from time to time.

How to get whites white again

  1. 1Treat the problem areasCollars, cuffs and underarms: Pro Formula for grey oily build-up, Enzyme Powered for yellow sweat marks.
  2. 2Wash whites on their ownOnly whites in the load, with the right detergent dose, and room in the drum.
  3. 3Use a warmer washWash at the warmest temperature the care label allows.
  4. 4Dry in fresh airLine-drying outside helps whites look and smell fresher. Check for stains before using a dryer.

Coming soon: Luniva Super White

Luniva Super White is a chlorine bleach powder for whites only. Add it directly to the wash with your usual detergent. Don't use it on wool, silk, colours or delicate fabrics, never on curry or turmeric stains, and never in the same wash as anything you've treated with Pro Formula.

Top tips

  • Keep a separate basket for whites so they never go in with colours by mistake.
  • Clean your washing machine every month or so: a dirty drum can grey a load.
  • Wash new jeans and dark towels on their own.

Questions

Often, yes. Treat the oily and sweaty areas, then wash whites on their own at the warmest temperature the label allows with the right detergent dose. Whites that have taken on a lot of dye from a coloured item may not fully recover.

Usually body oils on collars and cuffs, plus washing with other colours. Treat collars and cuffs with Pro Formula, then wash the shirts with whites only.

Grey usually means dirt or dye has settled on the fabric. Yellow usually means sweat, body oils, deodorant or suncream left behind. See our guide to yellow stains on white clothes.

Stain guides for this

More stain advice