This €4.50 laundry detergent is the best: 60 Millions de consommateurs backs it

Between green claims, loud branding and steadily climbing prices, picking a laundry detergent can feel surprisingly fraught for a job as ordinary as washing clothes.

After putting dozens of products through rigorous trials, the French consumer body 60 Millions de consommateurs found that one unassuming detergent at around €4.50 outshone many rivals. That headline result points to a wider issue: what you are actually putting into your washing machine, onto your clothing and down the drain.

Why a low-cost laundry detergent is suddenly in the spotlight

Detergent aisles are filled with pods, powders and liquids promising whiter whites, brighter colours and “gentle” formulas. In practice, many of us buy whatever is discounted or simply stick with the brand we know. But plenty of products still rely on aggressive substances, or disappoint once you look beyond the scent and suds.

To cut through the confusion, 60 Millions de consommateurs carried out a broad comparative study in 2023 covering detergents sold in France. The method will feel familiar to UK and US consumer testing groups: they assessed washing performance, then weighed up health considerations, environmental impact and overall value for money.

"The winning product was not the most expensive, nor the most aggressively advertised. It was a basic store-brand liquid priced around €4.50."

That finding runs against a common assumption that a higher price automatically buys better results and “cleaner” ingredients. The test indicates that this link is far less reliable than many shoppers believe.

How 60 Millions de consommateurs tested detergents

Products were scored against several practical measures, then combined into an overall rating that mixed technical wash performance with wider consequences.

The key criteria used in the ranking

• Cleaning efficiency: ability to lift everyday marks such as grease, mud, food, sweat and make-up.
• Fabric care: how well the product respected delicate fibres (wool, cashmere, silk) and how effectively it maintained colour on both dark and bright items.
• Health impact: whether the formula included irritating or sensitising substances that could contribute to allergies or skin reactions.
• Environmental footprint: ingredient biodegradability, potential to pollute water, and the presence of chemicals viewed as problematic.
• Price per wash: value per load, rather than just the sticker price on the shelf.

To keep comparisons fair, the laboratory used the same type of machine and standardised wash programmes. Detergents were tested at the recommended dose-important because using too much can make weak formulas look better while also increasing cost and pollution.

"A detergent judged “good” had to combine decent stain removal, limited health and environmental concerns and a reasonable cost per load."

The standout: Formil Colours, the €4.50 everyday option

In the category of liquid detergents for everyday coloured washing, one product stood out to the testers: Formil Colours, a colour detergent from the Formil private-label range sold widely in European discount supermarkets. On the French Ménag’Score scale it received a “C”, signalling middling overall results-yet 60 Millions de consommateurs still points to it as a sensible buy.

What explains the recommendation is the overall balance: cleaning judged good enough, a more controlled ingredient profile than many competing products, and a bottle price sitting at roughly €4.50. For households running multiple washes each week, that price gap adds up.

Product type	Example highlighted by 60 Millions	Approximate score	Typical price
Dark fabric detergent	Noir intense care with Marseille soap	14 / 20	€3–€5
Delicate / wool care	Wool and delicate care from Persil	12 / 20	Mid-range
General colour detergent	Formil Colours	Ménag’Score C	About €4.50

For dark garments, the magazine points readers towards “Noir intense care with Marseille soap”, which achieved 14 / 20, placing it among the stronger performers in the comparison. It also remains budget-friendly at about €3–€5, depending on where you buy it.

When it comes to fragile textiles, the testers favoured wool and delicate-care detergents from Persil, which landed at around 12 / 20. It is not a standout score, but the products delivered a workable trade-off between cleaning ability and protecting fibres-useful for gentle cycles and items you might otherwise hand-wash.

"The pattern is clear: niche, fabric-focused products performed reasonably well, while a low-profile €4.50 colour detergent became the everyday workhorse recommendation."

The detergents that fell short

Another major takeaway from the report is about big-brand capsules. Several pod-style products from Ariel and Skip-names familiar across Europe and also recognised in the UK and US-were positioned at the bottom of the table. The concern was not only how they washed, but also the environmental profile linked to certain ingredients in their compositions.

The testers also raised concerns about some budget products marketed with “traditional” cues. Leader Price bi-dose capsules and a liquid presented as Marseille soap by Apta were both called out. According to 60 Millions de consommateurs, each contained substances classified as irritating, which may be problematic for people with sensitive or reactive skin.

• Ariel and Skip capsules: criticised for formulas the testers considered unfriendly to the environment.
• Leader Price Bi-doses Power Duo: highlighted due to potential irritants for users.
• Apta “Marseille soap” detergent: also flagged for ingredients that may provoke skin reactions.

This gap between reassuring imagery-Marseille soap, “pure” foam, old-fashioned cues-and the actual ingredient list shows how branding can distort expectations. A heritage-style label is not proof of a mild formulation.

What the French findings mean for UK and US shoppers

Although the study focused on detergents sold in France, the broader implications travel well. Many of the named brands sell internationally, often tweaking product lines by country while keeping the same playbook: pods for ease, standard liquids for affordability, and “eco” ranges aimed at environmentally minded customers.

When applying the lessons at home, shoppers in Britain and America can use a simple set of checks when choosing a detergent.

A quick checklist before you buy

• Compare price per wash, not just the cost of the bottle; capsules often work out pricier than liquids.
• If anyone in the home has eczema, asthma or allergies, consider unscented or lightly scented options.
• Look for statements on biodegradability and recognised eco standards where available, but still read the ingredient information on the pack.
• Keep a dedicated detergent for dark clothing to slow fading and dulling.
• Use a delicate or wool detergent for knitwear, lingerie and technical sportswear.
• Do not overpour: modern detergents and machines rarely need a full cap.

"Marketing often sells convenience and perfume. Your skin and local rivers need something more boring: clarity on ingredients, moderation on fragrance and realistic promises."

Beyond cost: health concerns, microplastics and how long fabrics last

Today’s detergents do more than deal with stains: they influence clothing lifespan and how much microplastic pollution ends up in waterways. Powerful surfactants and highly alkaline formulas can gradually stress fibres, particularly on stretchy materials such as leggings and underwear.

Fragrances and preservatives are another sticking point. In homes with children or anyone prone to skin sensitivity, shorter ingredient lists may be preferable-even if the laundry smells less “fresh”. Some commonly used fragrances belong to groups associated with contact allergies in a small, but increasing, share of the population.

Microplastics add a further layer. Synthetic fabrics release tiny fibres in every wash. Your detergent choice will not eliminate this, but gentler programmes, cooler temperatures and less harsh formulas can reduce shedding. A product that cleans effectively at 30°C can help cut energy use while being kinder to clothing.

How to assess your detergent at home

Most people cannot run laboratory-style trials, but a few straightforward checks can still indicate whether a detergent suits your household:

• Wash an older dark T-shirt repeatedly with your usual product and check for fading or a grey cast after ten cycles.
• If you switch detergent, watch for itching or redness among household members; if unsure, add an extra rinse or move to a hypoallergenic option.
• Run a basic stain comparison: put coffee or oil on two identical cloths, then wash one with your current detergent and one with another brand at the same temperature.

These simple tests cost very little, yet they reveal whether that tempting €4.50 bottle works well in your own machine, with your local water hardness and the fabrics you wear.

The 60 Millions de consommateurs investigation delivers a straightforward message: you do not need premium capsules or eye-catching promises to wash effectively. A carefully chosen basic detergent-priced like the recommended €4.50 option and supported by transparent testing-can do the job while reducing risks to skin, clothing and the environment.