About
A small US supplement company
that sells exactly one formula.
Founded in 2022 by two friends who couldn't find a microplastics detox they'd actually take. Reviewed and co-signed by two physicians before launch. Manufactured in a cGMP-certified facility in the United States and tested by a third-party lab every batch.
The cofounders
Two friends. One bottle on the shelf.
Athonny Stein & Victor Papagrigoriou
Cofounders · Estonia & Greece, working from the US
Athonny came from endurance sport — the kind where small biochemistry decisions compound over months. Victor came from finance and got into the formulation rabbit hole after a labwork scare. Both kept hitting the same wall on supplements: the better the marketing, the worse the disclosure.
They started Gregorsen Labs in early 2022 with one product and one promise: tell the truth about it, in writing, on every page. Four years later, that's still the only product, and the promise hasn't moved.
Reviewed by
Two clinicians signed off on the formula before we shipped it.
Dr. Elena Markov, MD, MPH
Environmental Medicine · 12 yrs
Vets the toxicology assumptions and the order of the four phases — particularly the call to lead with binders rather than liver support.
Dr. Ashley Castro, PhD
Molecular Toxicology · Researcher
Reviews each ingredient's mechanism + dose against the published literature. The PDFs are on file and we'll email them on request.
How it gets made
Manufactured and tested in the United States.
- Facility
- cGMP-certified contract manufacturer, Vermont. NSF-audited.
- Batch testing
- Third-party lab certificate of analysis for every production run. Available on request.
- Capsule
- Vegan, gluten-free, soy-free. No artificial colours, no fillers beyond rice flour as a flow agent.
- Inventory
- Shipped from a warehouse in upstate New York. Average dispatch < 24 hours.
That's the company. One product, two founders, two physicians, one bottle on the shelf.
See the protocol