Tested 3× for purity & potency·Independent, peer-reviewed studies·Made in the USA·Free shipping over $75·60-day money-back guarantee·The exact ingredient from the research·
Testing

We test every batch three times.

Testing once isn't enough. The supplier tests it, our own lab tests it again, then an independent lab we don't own tests the finished batch. Read every report.

01
Supplier

Tested at the source

Every supplier tests its raw material and ships it with a Certificate of Analysis. If the paperwork isn't right, the material doesn't move.

02
In-house

Tested again in Bellingham

We don't take the COA's word for it. Our own lab re-checks identity and potency on arrival, and rejects anything off spec.

03
Third-party

Tested by an independent lab

The finished lot goes to an ISO-accredited lab we don't own — potency, heavy metals, microbials. Only then does it earn a label.

What we test for

What we check.

Identity (is it actually what the label says), potency (is the dose real), and purity (what came along for the ride).

·

Identity & potency

HPLC and assay confirmation that the active is present at the dose on the front — not 40% of it.

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Heavy metals

Lead, arsenic, cadmium, mercury. Botanicals pull what's in the soil; we catch it.

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Microbials

Total plate count, yeast, mold, and pathogens screened on the finished lot.

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Adulterants

Saffron gets cut with dye, glutathione gets sold oxidized. We test for the cheats.

Proof

Ask for the test results.

Every bottle carries a lot number. Email us with it and we'll send you the third-party Certificate of Analysis for that exact batch — potency, heavy metals, microbials, the lot. We'd rather you read it than take our word for it.

DOSE · 12.0 mg · LOT 0526 · TESTED

Dr. Marin Calloway, Head of Research & Quality, in the lab. A real working portrait — shirtsleeves, holding a vial or a signed COA, natural light, looking straight at you. Not a stock headshot.
Head of Research & Quality
“Most brands tell you what's in the bottle. Our job is to prove it — and to throw out the batch when we can't.”
Dr. Marin Calloway
Head of Research & Quality · PhD, Analytical Chemistry
Marin runs ingredient testing in Bellingham, Washington. Twelve years in pharmaceutical labs before this. She rejects any raw material that's even half a percent off — paperwork or not.

See where it comes from.

We can only test what we source well in the first place. Here's the supply chain behind every lot.

Our sourcing →