01
A living formula.
Four ingredients, fully biodegradable. No microplastics, no dyes or fragrances, no phosphates, no sulfates.
More on the formula ↓Our pillars
Three principles we measure everything against.
02
Light packaging.
HDPE-2 bottle (fully recyclable), FSC-certified recycled shipping box, paper tape. No plastic filler, no glossy laminate.
More on packaging ↓03
Lean operations.
Produced in Belgium. Independently tested in Switzerland and Belgium. Shipped with DHL from Nuremberg — short routes, no intermediate warehouses.
More on operations ↓At a glance
What our care actually does — qualitatively, honestly.
We deliberately avoid quantitative claims we can't independently back. Instead: principles we hold ourselves to.
Formula
Fully biodegradable
End-of-life water can be safely drained into garden or greywater.
Bottle
HDPE-2, recyclable
Mono-material. Fully processable through the standard German recycling stream.
Origin
Made in Belgium
Production in Belgium. No intercontinental supply chains.
Testing
Independent labs
Batches additionally validated in Switzerland and Belgium.
Formula & ingredients
Four ingredients. Less chemistry. Same effect.
We design the formula starting from compatibility — with your skin, with your spa's materials, and with everything that happens after the water is drained.
- AquaCarrier medium. Pure water, nothing else.
- Bacillus FermentProbiotic cultures, Safety Class 1. Non-pathogenic, naturally found in soil and water.
- PhenoxyethanolMild preservative under 1%. We chose the lowest amount that keeps a live culture stable on the shelf.
- EthylhexylglycerinCo-preservative, skin-friendly, biodegradable.
What's not in it
- Microplastics, glitter, or synthetic polymers
- Chlorine, bromine, or reactive shock oxidizers
- Phosphates and sulfates
- Artificial dyes and fragrances
- Animal testing or animal-derived ingredients
Packaging
Only what has to be there.
Every packaging decision is a trade-off between protection, hygiene, and end-of-life. We make ours openly and with nothing hidden behind the marketing.
What we use
- HDPE-2 bottle, supplied by Distriflac (Belgium) — mono-material, fully recyclable in standard German waste streams.
- FSC-certified recycled shipping box.
- Paper tape instead of plastic tape.
- Single-layer label — easy to separate from the bottle.
- Soy-based inks on box and label.
What we avoid
- Virgin PET or virgin HDPE from petroleum where recycled content is available.
- Plastic filler, bubble wrap, styrofoam chips.
- Glossy laminates and mixed materials.
- Marketing inserts that go straight to recycling.
Bottle supplier: Distriflac N.V., Belgium (distriflac.be) — specialists in HDPE/PET packaging with a focus on recyclability.
Operations
Water, energy, routes.
Care that uses less doesn't start at the customer. We look at where our operations save water, energy, and miles — and where we still have work to do.
Water
Probiotic care extends the time between water changes. You change less often — and when you do, the water is biodegradable and safe for garden or greywater.
Energy
Fewer chemical spikes means more stable water chemistry. Filters and heaters work less hard against shock cycles — a small but constant effect on power use.
Routes
Production in Belgium, end-to-end shipping with DHL. We deliberately avoid intercontinental supply chains and repacking stops.
Carbon
We don't publish a verified product carbon footprint today. Rather than a marketing number nobody can back, we say honestly: it's on the list — see goals.
Production
Made in Belgium. Tested batch by batch.
Every bottle of WhirlBiotic is produced in Belgium — under EU Cosmetics Regulation 1223/2009 and with microbiological testing on every batch.
EU Cosmetics Regulation 1223/2009
Full compliance, documented via CPNP notification and safety assessment by a qualified person.
Microbiologically tested batch by batch
Before release, every batch is tested for live culture count, contamination, and stability.
Safety Class 1 only
Only Bacillus strains classified as non-pathogenic. Safe for people, pets, and materials.
Traceable
From culture strain to bottle — every batch carries a number we can trace back to its source material.
Independent testing
Real labs, not certification logos.
We deliberately chose not to collect a wall of certification badges. For a non-chemical, biodegradable formula, many of those seals aren't the right yardstick. We test with independent labs instead.
Switzerland
Microbiological validation
Swiss labs validate the stability of the live cultures, the purity of the finished product, and compatibility with real spa materials.
Belgium
Material compatibility & packaging
Belgian partner labs test the interaction with our HDPE-2 bottle and the long-term stability under normal storage.
Why no traditional certification?
- 01Many eco-seals are designed for chemical industrial products — they measure things we deliberately don't contain.
- 02Certification bodies often charge high annual fees that raise the end price without adding substance to the product.
- 03We'd rather spend that money on actual lab tests — on every batch, instead of once every three years.
- 04EU Cosmetics Regulation 1223/2009 is our binding legal framework. Everything beyond it we test transparently ourselves.
Goals & roadmap
Where we're headed — honestly, no marketing gloss.
We only publish goals we're actually working toward. If things change, this list changes too.
2026
Current year
- Publish our first transparency note — current state of ingredients, packaging, suppliers.
- Track shipping CO₂ per order internally (foundation for a later public release).
- Further simplify label material — goal: fully recyclable with the bottle, no separation needed.
2027
Planned
- First external Life Cycle Assessment (LCA) of the 1 L bottle.
- Evaluate and, if food-grade recycled HDPE is available, introduce recycled content in the bottle.
- Document a full year of production energy use in Belgium.
2028
Long-term
- Publish a verified product carbon footprint.
- Climate-neutral shipping via certified offsetting or direct investment.
- Partner with a university for independent research on the effect of probiotic spa care on greywater.
Industry & partners
What we share with others.
For hotels & spas
We work with hotels, wellness facilities, and therapy centers that want to offer guests water without the chlorine smell. Training material and dosing guides are free.
For business →For hot tub dealers
Wholesale and resale without minimum-quantity games — we deliver what's actually needed and train sellers on probiotic care.
Wholesale →For customers
An honest guide, not a volume-discount game. If your care lasts longer than expected, we'll say so — even if it means fewer reorders.
How it works →Transparency
What we publish — and what we don't (yet).
We don't turn unknowns into marketing. This list shows openly where we have solid data and where we're still working.
What we publish
- Full INCI list on every bottle.
- Country of production (Belgium).
- Bottle supplier (Distriflac, Belgium).
- Testing locations (Switzerland, Belgium).
- Returns and withdrawal terms.
- Batch number and best-before date on every bottle.
What we don't (yet)
- Verified product carbon footprint — planned for 2028.
- External Life Cycle Assessment (LCA) — planned for 2027.
- Exact recycled content share in the bottle.
- Scope 3 emissions from the supply chain.
Have a specific question about sustainability, suppliers, or testing? We reply personally.
[email protected]Sustainability · FAQ
What customers ask about sustainability.
Is the formula really fully biodegradable?
Why HDPE-2 instead of glass?
Why phenoxyethanol if you're 'natural'?
Do you have an organic seal or eco-certification?
Can I drain the water into my garden after treatment?
Are there any animal tests?
Do you offset shipping?
Where are you independently tested?
Care that gives more than it takes.
If you like how we think, give it a try. If not, write us — we learn most from customers who look closely.