Where are Cosmeau products developed and made?

We develop our products ourselves and produce a growing share at our own site in Velsen-Noord. For each product, we show as clearly as possible how and where it's made.

Wat gebeurt er op jullie locatie in Velsen-Noord?

That's where we have around 2,000 m² of factory space and a 2,500 m² warehouse. Product development, a growing share of our production, storage and part of our packing and shipping all come together there.

Do you develop the scents yourselves?

Yes. We develop our unique scents ourselves within the EU and choose every raw material according to our own quality standard. There's also a variant without added perfume.

What do you mean by checks at raw material level?

We don't just assess the final scent, but every raw material used, one by one. Substances regarded as endocrine-disrupting under our quality standard are excluded. That's an extra quality choice, not a medical guarantee.

What do you handle yourselves when it comes to storage and shipping?

We manage our stock and storage in Velsen-Noord. We handle part of the packing and shipping ourselves; for the rest of our logistics we work with regular partners in the Netherlands.

Hoe helpt Cosmeau om minder plastic te gebruiken?

Wherever possible, we choose compact formulas, refillable or recyclable solutions and packaging with as little unnecessary material as possible. For each product, we explain the choice we've made.

Can I follow your production and developments?

Gladly. In our blogs and production updates we share new machines, formulas, tests and behind-the-scenes improvements. You can also sign up for our mailings.

Wanneer wordt mijn bestelling verzonden?

Shipping details are shown at checkout.

Black colour booster strips, black laundry only, not detergent

Name: Kleurbooster Zwart ALLEEN VOLLEDIG ZWART WASGOED (Geen Wasmiddel): Zwarte Donkere Was Color Protect Strips
Rating: 4.65 (23 reviews)

In stock, ready to ship

Ben je ook klaar met de grauwe waas van je donkere was? Gebruik dan de Black Protect sheets van Cosmeau met actieve ingredienten om je donkere was langer donker te houden én donkerder te laten worden!...Read more

€2,95

1Choose your WasbeurtenSelect the option that suits you

Shown at checkout

Shipped from NL warehouse

Safe and trusted payments

30-day satisfaction guarantee

Personal customer service

Productomschrijving

30-day money-back guarantee

Not happy? Contact us within 30 days. We will find a good solution together.

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Shipping detailsShown at checkout

Shipped from NL warehousePacked and dispatched in the Netherlands

Secure paymentiDEAL, PayPal & more

Money-back guarantee100% guarantee

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200k+ huishoudens

Real experiences from people like you

Customer reviews

5 stars: 18 (78%)
4 stars: 4 (17%)
3 stars: 0 (0%)
2 stars: 0 (0%)
1 star: 1 (4%)

Kleurbooster zwart

Ik ben erg tevreden over kleurbooster zwart. De kleding knapt er zichtbaar van op.

Kleurbooster Zwart ALLEEN VOLLEDIG ZWART WASGOED (Geen Wasmiddel): Zwarte Donkere Was Color Protect Strips

Top

Alles snel en voorspoedig verlopen

Perfect zwart

Ik heb net 2x gewassen met de strip voor zwarte was, maar volgens mij ga ik wel blij worden van deze strips.

Priema kleur booster

Doet precies wat het zegt. En mijn zwarte was blijft mooi zwart

Top product

De booster laat je kleding veel langer gelijkmatig zwart zien - helemaal top in combinatie met de wasstrips voor zwarte was.

Werkt goed

Kleding blijft mooi zwart

Kleurbooster Zwart ALLEEN VOLLEDIG ZWART WASGOED (Geen Wasmiddel): Zwarte Donkere Was Color Protect Strips

Kleurbooster zwart

Mijn kleren zien er al naar 1 wasbeurt zwarter uit.

Het werkt!

Het voldoet boven verwachting

Extra bescherming: zwarte kleding blijft zwart

Extra bescherming: zwarte kleding blijft zwart

Werk perfect

Erg gemakkelijk die strips en goed

zeer tevreden

Ik ben erg tevreden met kleurbooster, het houdt de zwarte was ook echt zwart en het vervaagt niet.

Kleurbooster Zwart ALLEEN VOLLEDIG ZWART WASGOED (Geen Wasmiddel): Zwarte Donkere Was Color Protect Strips

Nog niet gebruikt

Geweldig

Mijn kleren zijn weer mooi zwart 🤩

Valt tegen

Heb hier voor ander merk gehad, die vond ik persoonlijk veel beter

Kleurbooster Zwart ALLEEN VOLLEDIG ZWART WASGOED (Geen Wasmiddel): Zwarte Donkere Was Color Protect Strips

verkleuring

moet echt alles puur zwart zijn geen andere kleurstrwwp of lijn in je kleding, anders wordt dit verkleurt

Zwarte Donkere Was Color Protect Strips

Beste, ik heb niets ontvangen!

Wennen

Ik moet nog even aan het idee wennen, doekjes gaan er zwart in en komen er grijs/ wit weer uit dus het scheind wel te werken moet het nog even bekijken op de langere termijn

Why Cosmeau works differently

It is not only what is in the pack that counts, but also who develops and makes it. With our own R&D and lab in the Netherlands, our own production machines and a growing share of production and packing in Velsen-Noord, we keep that knowledge close. That is how we improve faster and keep quality within reach.

Research ourselves. Make more ourselves. Make it accessible for more people.

We develop formulas and scents with a clear purpose, keep expanding our own production in the Netherlands and use that knowledge to keep quality affordable. Through product donations and other initiatives, we put part of what we build towards people who could use some extra support.

Black colour booster strips, black laundry only, not detergent

Good to know

Customer reviews

Van formule tot eindproduct.

Scent development with a higher bar

Scent bead production in our own factory

From our own storage, together with regular partners

Leren. Testen. Zelf maken.

De eerste lokale productiestap

Learning, testing and adapting

Eigen productie op schaal

New production hall and further R&D

Why Cosmeau works differently

Cosmeau

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Supermarkt-huismerk

White-label webshop

Cosmeau

Klassiek A-merk

Supermarkt-huismerk

White-label webshop

What we aim for

Research ourselves. Make more ourselves. Make it accessible for more people.

What laundry households say

Frequently asked questions about who we are and how we work

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Questions? We are here

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Black colour booster strips, black laundry only, not detergent

Van formule tot eindproduct.

Scent development with a higher bar

Scent bead production in our own factory

From our own storage, together with regular partners

De eerste lokale productiestap

Learning, testing and adapting

Eigen productie op schaal

New production hall and further R&D

Cosmeau

Klassiek A-merk

Supermarkt-huismerk

White-label webshop

Cosmeau

Klassiek A-merk

Supermarkt-huismerk

White-label webshop

What we aim for

Research ourselves. Make more ourselves. Make it accessible for more people.

What laundry households say

Frequently asked questions about who we are and how we work

Follow our mission, updates and practical guides

Questions? We are here

Consider a subscription

Do you follow us at @cosmeau.eco too?

Follow our mission