Version 2.0 formulas releasing soon · Single batch every time — every batch reformulated and matched to the latest scientific evidence · 166 evidence-based compounds across 30 products.Version 2.0 releasing soon · Single batch every time · 166 compounds across 30 products.
Formulas built the way I would build them for myself.
Tier 1 · multiple human RCTs
Vitamin D3 (cholecalciferol, lichen-derived)
Deficiency correction RCTs; 5,000 IU/day typical for serum 50–80 ng/mL.
9/10evidence score
125 mcgstudied dose used
What the evidence shows
Deficiency correction RCTs; 5,000 IU/day typical for serum 50–80 ng/mL.
Tier is our appraisal of the human evidence at the dose we use: Tier 1 = multiple randomized trials; Tier 2 = human trials, fewer or smaller; Tier 3 = mechanistic, traditional or early human data; Tier 4 = emerging. Ingredients below Tier 2 are included only where the safety record is long and the traditional use is specific.
Form and dose
Form used
D3 5,000 IU
Dose per serving
125 mcg
Delivery
Standard / as studied
Who should be careful
Hypercalcemia at very high doses; pair with K2. Talk with your clinician before starting if any of this applies to you.
These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease. Nothing on this site is medical advice — it is educational "what I would do if I were you" guidance from an executive health coach. Talk with your clinician before starting any supplement, especially if you take medication, are pregnant or nursing, or have a medical condition. Last reviewed October 2026.
The protocols we cannot publish here
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