Key Facts
- Vitamin K is a fat-soluble nutrient that activates proteins involved in blood clotting and bone mineralization
- This formula combines K1, MK-4, and MK-7 — three forms that work in different tissues throughout your body
- MK-4 concentrates in bone and vascular tissue, while MK-7 has a longer half-life, supporting sustained activity
Ingredients
Vitamin K (6,090 mcg total), vitamin K1 (1 mg), vitamin K2 as MK-4 (5 mg), vitamin K2 as MK-7 (90 mcg), hypromellose capsule, microcrystalline cellulose, mixed tocopherols, silicon dioxide.
Why We Chose This
Most vitamin K supplements emphasize one form, but bone and vascular health benefit from multiple forms working in concert. This formula's higher MK-4 content addresses a real gap — MK-4 accumulates preferentially in bone tissue and supports the carboxylation of osteocalcin, a protein central to bone mineralization. The addition of MK-7 extends the nutrient's activity window throughout the day. Together, these forms support the activation of matrix Gla protein in arterial walls, which helps maintain vascular elasticity. The combination reflects current research on how different K2 subtypes distribute across tissues.
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