A question nobody was asking.
If you care what's in your food, your skincare, your cleaning products — why would you not care about what's in the device you wear in your mouth for eight hours every night?
We built bio. to answer it.
Most retainers are standard thermoplastic, and most aligner brands make their trays from petroleum-based plastic and have never published what it sheds during wear. Nobody was even asking the question — so we did. Our retainers use a bio-derived polymer; our aligners are the only ones in the UK made from a plant-based, BPA-free material.
bio. retainers are the only ones in the UK independently tested for microplastic release, with every result published. Every claim on this site is backed by published data.
The clean beauty movement reformed skincare over a decade. The dental device industry has never been held to the same standard. bio. is that brand for oral care.
Three things we'll never compromise on
If we can't test it, we don't claim it.
Every material claim is backed by independent lab testing, filed, and linked publicly.
Supervision is not optional.
Every case is managed by a registered UK clinician. Clean materials and proper supervision are the same product.
Adult tone, always.
No adjectives without evidence. No fear marketing. We write for our customer, not at them.
Tested lot by lot. Published in full.
From £100 per arch. From £140/year subscription. Delivered to your door.
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