New: Our 5th generation laundry sheets are here! 🤩 We have worked hard to further improve the formula based on customer feedback. On January 14, we asked what your most common stains were with this...
This post was originally sent as a Cosmeau newsletter in May 2025.
Mailing Summary
- 🌀💪 New: 5th Generation Laundry Sheets
- 🇳🇱 Scent Pearls Made in Holland Pre-Sale
- 🎁 Free Golden Storage Box for you
- 💶 June Discounts: Spring Fresh scent pearls and G5 Laundry Sheets
🌀💪 New: 5th Generation Laundry Sheets
New: Our 5th generation laundry sheets are here! 🤩 We have worked hard to further improve the formula based on customer feedback. On January 14, we asked what your most common stains were, with these results:
This formed the basis: we focused on better removal of grass, mud, and food stains. For this, we used independent SGS tests. SGS is a globally leading testing, inspection, and certification company.
Our own testing facilities are not yet at the level where we can reliably and consistently test and guarantee significant differences. SGS conducts wash cycles according to international standards (AISE standard), where textile swatches are stained, washed, and measured under exactly the same conditions.
In short: expensive, but measurable 😆
Unfortunately, sweat is difficult to standardize on textile swatches, so we involved our test panel – that is, you! More specifically: those of you with families that sweat a lot 😅. We are still in the process of testing, collecting feedback, and improving. Thank you for your literal physical effort! 💪
Okay, nice results… but what does it really do?
For the main stains: 32% better cleaning on grass and mud stains and 24% better on food stains.
On some other stains, like wine, G5 performs slightly less well. But since those are not common stains (1% of respondents), we chose to focus mainly on the stains that are common. That seemed the most logical choice. Of course, we will continue to develop and are already testing an update.
How to recognize G5:
On the top right of the packaging, you will find a green circle with “G5”.
The sheets are blue or white with brown dots, depending on the batch.
Test them yourself and be sure to let us know what you think!
We compared G5 with more than 14 brands from the Netherlands, Belgium, and internationally – all tested under the same SGS conditions. During formulation, we had one mission: to make the best laundry sheet based on real measurable performance. And we succeeded. G5 is the best laundry sheet on the market. 🎉😊
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Mannanase NEW
An enzyme that breaks down plant-based stains (such as mud, grass, vegetables). Enzymatically active at low temperatures. Biodegradable. -
Amylase NEW
Breaks down starch from stains like pasta, rice, or sauces. Supports deep cleaning. Biodegradable and environmentally friendly. -
Protease
An enzyme that breaks down protein stains (such as blood, dairy, or egg). Significantly increases washing power. Biodegradable. -
Lipase NEW
An enzyme that breaks down fats and oily stains. Works powerfully even at low wash temperatures. Biodegradable and gentle on the environment. -
Cellulase
An enzyme that cares for cellulose fibers by removing small fiber fragments that can cause a dull haze. This keeps colors fresher longer and makes laundry look newer for longer. Biodegradable.
Pre-sale alert 🔔
The first limited edition of Spring Fresh G5 – 120 wash cycles can be reserved starting today with up to a 32% introductory discount, especially for you! They will be shipped early June.
Bonus from us:
Order this May and you will receive two free G5 samples with every order over €20. These will be automatically added to your shipment.
Note: The scent of G5 may differ slightly from G4. We have brought the scent closer to the Spring Fresh scent pearl.
We will be sharing everything about G5 with you in the coming period. Stay tuned 😊
🇳🇱 Scent Pearls Made in Holland Pre-Sale
In our previous mailing, we indicated that this month we would start mass production of our microplastic-free scent pearls! We are well on our way, the machines are connected and all working properly. But nothing without challenges, of course. Scaling from lab to production machine turns out to be more challenging 😬
We made the first larger batch and the process started to clump and did not mix properly. We now know the cause but have scent pearls that do not meet our standards, although they do release scent. Because we don’t want to throw these away, we will sell this batch for a small price of €5. That way you help us prevent waste and get scent pearls at a low price.
Because the scents now come from Europe, they may vary slightly. We find that Spring Fresh smells even more like Spring Fresh because the characteristic scent comes through stronger. Additionally, we select raw materials for the scents that ⚠️ do not contain carcinogenic substances at the oil level.
We discovered that this hazard symbol does not always have to be displayed if scents fall below a certain percentage. We do not want this in our products for you, in our noses, or on our skin! Another reason to produce locally and ourselves for full control 👋
For the rest, we are preparing the entire process: the filling machines arrive next week, batch printers are being tested, and we are sourcing the scents one by one within the EU.
