The Science
The Science Behind
Every Formula We Build.
Three non-negotiable standards. Applied to every ingredient, every dose, every formula. This is what separates KUR from the supplement industry it was built to replace.
Three Standards. Zero Exceptions.
The form determines whether it works.
Magnesium oxide has a bioavailability of around 4%. Magnesium glycinate is chelated to glycine and absorbs at dramatically higher rates with zero digestive discomfort. Generic ashwagandha root powder has no standardization — KSM-66® is standardized to 5% withanolides and backed by 24 clinical trials. The ingredient on the label means nothing if the body can't absorb and use it. Every KUR formula uses the form the research actually validates — not the cheapest available version of the same ingredient name.
The dose determines whether it produces results.
Most supplement brands use "pixie dusting" — adding an ingredient at a dose too low to produce any measurable effect, just to list it on the label. The clinical research on ashwagandha uses 600mg of KSM-66®. Most supplements use 300mg of a generic extract. The clinical research on berberine uses 500mg. Most supplements use 250mg. KUR doses every active ingredient at or above the threshold used in the research that demonstrated efficacy. Not a token amount. An amount that does something.
What's on the label is what's in the capsule.
No proprietary blends concealing underdosed ingredients. No artificial fillers, dyes, or binding agents added for manufacturing convenience. No marketing ingredients included to make a label look impressive rather than perform. Every KUR formula discloses every ingredient and every dose transparently — because a formula that needs to hide its contents isn't a formula worth taking. Third-party tested. Manufactured in an FDA-registered facility in the USA. Full label transparency, every time.
Why These Forms. Why These Doses.
Magnesium Glycinate
Chelated Form · 275mg Elemental · Clinical DoseMagnesium is a required co-factor for over 300 enzymatic reactions — including GABA synthesis, ATP energy production, insulin signaling, and nervous system regulation. An estimated 50% of people in developed countries are deficient. The glycinate form is chelated to glycine, an amino acid, which dramatically increases absorption compared to oxide or citrate forms and eliminates the laxative effect common with high-dose magnesium. The form matters as much as the mineral.
KSM-66® Ashwagandha
Full-Spectrum Root Extract · 5% Withanolides · 600mgKSM-66® is the most clinically studied ashwagandha extract available — a full-spectrum root extract standardized to 5% withanolides via a patented extraction process. Over 24 gold-standard clinical trials document its effects: meaningful reductions in serum cortisol, significant improvements in stress and anxiety scores, enhanced physical endurance, improved testosterone in men, and better sleep quality. Generic ashwagandha at any dose is not the same compound.
Berberine HCl
Dual-Extract 97% + 8% · Granular Form · 500mgBerberine activates AMPK — the body's metabolic master switch — improving insulin receptor sensitivity, reducing hepatic glucose production, and supporting healthy lipid profiles. Over 100 clinical trials have examined its effects. Multiple head-to-head studies show efficacy comparable to metformin for fasting blood glucose and HbA1c reduction. KUR uses a dual-extract granular formula combining 97% bark extract with 8% bark/root extract for full-spectrum bioactive coverage. 500mg is the dose the research used.
13-Compound Sleep Cascade
Four Mechanisms · Full Neurochemical CoverageSleep isn't a switch — it's a cascade. Melatonin signals onset. GABA and L-Theanine quiet neural activity. 5-HTP and L-Tryptophan feed the serotonin pathway. Ashwagandha suppresses the evening cortisol that blocks sleep initiation. Magnesium Citrate and B6 provide the mineral and vitamin co-factors for GABA and melatonin synthesis. A botanical complex of Chamomile, Passionflower, Lemon Balm, Hops, and Chinese Skullcap deepens and extends the effect. Thirteen compounds because sleep requires thirteen inputs.
What Every KUR Formula Is Held To
Third-Party Tested
Every formula tested by an independent third party for potency, purity, and label accuracy. What's on the label is verified to be in the capsule.
Clinically Dosed
Every active ingredient dosed at or above the threshold used in published clinical research. No pixie dusting. No token amounts for label appeal.
Full Transparency
No proprietary blends. Every ingredient and every dose disclosed on the label. If we can't show you exactly what's in it, it doesn't belong in a KUR formula.
Made in the USA
Formulated and fulfilled in the United States in an FDA-registered facility. Every batch produced to current Good Manufacturing Practice (cGMP) standards.
"The supplement industry optimized for labels. We optimized for results. Those are not the same objective — and the difference shows up in the capsule, not the packaging."
— The KUR StandardThe Standard Applied.
Find Your Protocol.
Every formula built to the same three standards. Bioavailable forms. Clinical doses. Nothing hidden. Try any KUR protocol risk-free for 60 days.
Shop The ProtocolsFree shipping · 60-day guarantee · Formulated in the USA