About the product
- Vegan Vitamin D: Sustainably sourced plant-based vitamin D3 that supports healthy teeth and bones by enhancing the absorption of calcium; supports immune function and cardiovascular health
- Optimal Absorption: Vitamin D3 (as cholecalciferol) is more potent and better absorbed than vitamin D2 (or ergocalciferol); research shows vitamin D3 is more effective at raising overall vitamin D levels
- Easy to Take: The liquid form with a bulb-dropper top measures doses of both 2,000 and 4,000 IUs of vitamin D that can be mixed with food or beverages, empowering customizable supplementation
- 4 Rounds of Testing: Our state-of-the-art laboratories enable us to conduct 4 rounds of testing on every product, from analyzing the purity of raw materials to confirming the shelf life of finished formulas
- Trusted: Thorne is trusted by 100+ professional sports teams and the #1 most recommended clinical brand by consumers and health-care practitioners (Based on a 2026 independent survey of US supplement consumers and health-care practitioners)
