Of all the categories where Persil and Ariel can credibly claim premium pricing, laundry detergent in 2026 is no longer one of them. Supermarket own-brand bio liquid has closed almost the entire performance gap on typical household washing. And the eco-friendly brands — Ecover and Method — that used to clean noticeably worse than mainstream rivals now clean genuinely competitively.
The result: UK households paying Persil prices for routine washing are mostly paying for the brand of detergent their parents used. The £200-£300 a year saved over five years by switching to supermarket own-brand is real money, and the only honest reason to keep buying premium is if you specifically prefer the fragrance or trust the brand.
What you're paying for, and what you're not
The three things that matter in a detergent:
- Cleaning performance on typical soiling (food, sweat, grass) — most detergents above £3/litre meet baseline competence
- Skin sensitivity, if relevant — non-bio for sensitive skin; fragrance-free for very sensitive skin
- Cost per wash — capsules and pods are convenient but typically cost 30-50% more per wash than liquid
What the marketing emphasises but matters less:
- "Whitening" claims beyond the baseline level
- Fragrance variety
- "Premium" branding
The brands worth knowing
Tesco / Sainsbury's own-brand bio liquid at £3-£5/litre equivalent. Cleaning performance is 90-95% of branded equivalent at 50-70% of the price. The right answer for most UK households doing routine washing.
Persil at £6-£8/litre equivalent. Mainstream premium. Bio version for general washes; non-bio for sensitive skin. Genuine cleaning performance — the pricing reflects mainstream brand premium more than functional superiority.
Ariel at £6-£8/litre equivalent (£0.25-£0.40 per pod). Competitor to Persil at similar pricing and quality. The capsule format (Ariel All-in-1 Pods) is convenient but pricier per wash.
Ecover and Method at £6-£8/litre. Eco-friendly detergent brands. Cleaning performance has improved substantially in 2024-26 — now genuinely competitive with mainstream brands. Plant-based formulas, recyclable bottles. The eco premium is now small enough to be a viable choice rather than a clear-eyed compromise.
How I'd actually pick
Most UK households with normal laundry needs: Sainsbury's or Tesco own-brand bio liquid. £150-£250 a year saved versus Persil for a typical 5-load-per-week household.
UK households with sensitive-skin members: Persil Non-Bio or Surcare. The fragrance-free formulation matters more than which brand makes it.
Eco-conscious households: Ecover at slightly higher price than mainstream branded — genuinely competitive on cleaning now, not just on environmental credentials.
UK households wanting capsule convenience: Ariel All-in-1 Pods are competitive in this format. Recognise you're paying ~30% more per wash for the convenience of not measuring liquid.
What I'd swerve: cheap £2/litre detergents from unknown brands (cleaning is often poor); premium designer detergents at £15-plus a litre (paying for marketing, not product); detergent subscription services at premium pricing.
The bigger lever: temperature
Beyond detergent choice, laundry temperature matters more than most households realise:
- 30°C wash cleans most everyday clothes adequately and saves substantial energy versus higher temperatures
- 40°C wash is better for moderately soiled items
- 60°C wash for bedding, towels, removing tough stains — uses meaningfully more energy
UK households defaulting to 60°C for everything are wasting energy and money. 30°C with a quality detergent handles most laundry, and the £150-£250 a year you can save on the energy bill alone often dwarfs the difference between own-brand and Persil.
For wider energy considerations, see our energy switching guide.
The fabric softener question
Optional, and most UK households buy too much. Fabric softener is mostly cosmetic — softens fabric, adds fragrance. If you're concerned about microfibre or environmental impact, white vinegar in the rinse at roughly £1/litre replaces fabric softener for most purposes. Effective and dramatically cheaper. It also doesn't leave residues that gradually reduce towel absorbency, which is the silent crime of fabric softener that nobody talks about.
Affiliate disclosure: Morningfold has affiliate partnerships with Tesco, Sainsbury's, Ecover, and Method. See editorial standards.