2,000 IU label strength
Vitamin D3
Foundational daily D3 at a 2,000 IU label claim, with heavy metals tested and published per batch.
$26.00
$29.99
Third-party tested: heavy metals all in-spec by ICP-MS/MS, Lot VS240798
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Free U.S. shipping on orders $75 or more. Ships from a U.S. fulfillment center.
Third-party testedIndependent lab results available.
Founder-ledGrant uses every product daily.
Simple routineOnly the foundation before extras.
Simple D3 softgel
- 2,000 IU label claim
- Vitamin D3 (cholecalciferol), not D2
- Batch VS240798 with heavy metals all in-spec
Supplement facts
Tap the Facts thumbnail in the product gallery to view the Supplement Facts panel.
Shipping
Ships from a U.S. fulfillment center. Free U.S. shipping on orders $75 or more. The Trinity Stack ships free.
Product details
Vitamin D3 with public batch proof.
A simple D3 softgel for customers who want the foundational basics covered without a complicated formula. Every batch is tested and the results are published before the sale.
Frequently asked questions
Questions about Vitamin D3
How much Vitamin D3 should I take daily?
The Endocrine Society recommends 1,500–2,000 IU daily for adults at risk of deficiency. PeakFusion Vitamin D3 provides 2,000 IU of cholecalciferol (D3) per softgel, matching that recommended range in one simple daily softgel.
What is the difference between Vitamin D3 and Vitamin D2?
D3 (cholecalciferol) is the form synthesized in human skin and is significantly more effective at raising serum vitamin D levels than D2 (ergocalciferol). Research shows D3 is approximately 87% more effective than D2 at equivalent doses. PeakFusion uses D3 only.
When should I take Vitamin D3?
Take with a meal containing fat. Vitamin D3 is fat-soluble, meaning dietary fat significantly improves absorption. Morning or evening with a meal both work equally well — daily consistency is what matters.
How do I know if I am Vitamin D deficient?
Deficiency is common in athletic populations, with research finding rates of 35–70% in certain groups, particularly among indoor athletes and those in northern latitudes. A 25(OH)D blood test through a healthcare provider is the only accurate way to assess your status.
How is PeakFusion Vitamin D3 tested?
Current lot VS240798 was independently tested for heavy metals (arsenic, cadmium, lead, and mercury) by ICP-MS/MS using ISO 17025 accredited methods, with every analyte in-spec. Full test results are publicly available on our lab results page.
Can I get Vitamin D3 on a subscription?
Yes. Subscribe & Save delivers a fresh bottle every 12 weeks at 15% off, timed to the 100-softgel supply. Skip, pause, or cancel anytime from your account, and every refill ships from the same third-party tested lots.
Product proof
2,000 IU cholecalciferol D3. Heavy metals verified in-spec.
Vitamin D3 helps support calcium absorption, bone health, muscle function, and immune function without making the daily routine complicated.
ICP-MS/MSheavy metals in-spec, Lot VS240798
- Cholecalciferol D3, not D2
- Arsenic, cadmium, lead, and mercury in-spec
- ISO 17025 accredited testing methods
Every product must be simple enough to use daily and strong enough to justify staying in the routine.
Lab results, founder use, and customer reviews answer hesitation before checkout.
Complete the routine
Get all three in the Trinity Stack
Creatine, Complete Multivitamin, and Vitamin D3 in one checkout. Same testing standard on every lot, free U.S. shipping.
$94.00save $9.00 vs buying all three separately
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
