Thorne Vitamin D3 + K2 Liquid Drops – Bone & Heart Support 1oz

Thorne Vitamin D3 + K2 Liquid Drops – MK-4 Vitamin K2 + D3 in MCT Oil | The Synergistic Bone, Heart & Immune Formula

Vitamin D3 and K2 are more powerful together than either is alone — and Thorne's liquid formula delivers both in their most clinically effective forms. D3 (cholecalciferol) is the superior-absorbing form of vitamin D; K2 as MK-4 (menatetrenone) is the most extensively studied form of vitamin K2. Together, they direct calcium where it belongs — into bones and teeth — while actively protecting soft tissues like arteries and kidneys from calcification. Suspended in medium chain triglyceride (MCT) oil and preserved with mixed tocopherols, each self-dispensing drop delivers a precise, individualized dose with no guesswork.

Key Benefits

• ✅ D3 + K2 synergy for superior bone support — D3 increases calcium absorption; K2 (MK-4) activates osteocalcin to bind calcium into bone matrix; together they provide advanced bone density support neither achieves alone
• ✅ Cardiovascular protection via calcium routing — K2 activates Matrix Gla Protein (MGP), the body’s primary inhibitor of arterial calcification; helps keep calcium out of arteries and soft tissues
• ✅ MK-4 — the most clinically studied form of vitamin K2 — Thorne uses menatetrenone (MK-4), not MK-7; MK-4 has the longest clinical research record for bone and cardiovascular outcomes
• ✅ D3 (cholecalciferol) — the potent, bioavailable form — D3 is significantly more effective than D2 at raising and sustaining serum 25(OH)D levels
• ✅ Supports healthy immune function — vitamin D3 is essential for innate and adaptive immune regulation; optimal D levels are associated with robust immune defense year-round
• ✅ Self-dispensing drop top for precise, individualized dosing — invert to dispense single drops; easily adjust dose per your healthcare provider’s guidance without opening capsules or splitting tablets
• ✅ MCT oil base for enhanced fat-soluble absorption — D3 and K2 are fat-soluble vitamins; MCT oil provides an immediate lipid carrier for optimal uptake even without a meal
• ✅ 600 servings per 1 fl oz bottle — exceptional value; at 2 drops once daily, one bottle lasts approximately 20 months
• ✅ Thorne quality — NSF Certified for Sport® — manufactured to pharmaceutical-grade standards; free of gluten, dairy, soy, and common allergens

Who It’s For

• Those with confirmed or suspected vitamin D deficiency — the liquid format allows flexible dosing to correct deficiency under practitioner guidance without being locked into a fixed-dose capsule
• Bone health and osteoporosis prevention — the D3 + K2 combination is the evidence-based standard for supporting bone mineral density at any age
• Cardiovascular health and arterial protection — K2 (MK-4) directly inhibits arterial calcification; ideal for those focused on long-term heart and vascular health
• HTMA protocol users — vitamin D and K2 play key roles in calcium metabolism and mineral balance; commonly recommended alongside HTMA-guided mineral protocols
• Immune support year-round — especially valuable in winter months or for those with limited sun exposure; D3 is foundational to immune regulation
• Those on anticoagulant therapy — consult your physician first — vitamin K2 may interact with warfarin (Coumadin) and similar anticoagulant medications; not suitable without medical supervision
• Practitioners and their patients — Thorne’s liquid format is a practitioner favorite for its dosing flexibility, purity, and NSF Certified for Sport® manufacturing standards

Supplement Facts

Serving Size: 2 Drops
Servings Per Container: 600
Suggested Use: Take 2 drops one to three times daily, or as recommended by your health professional. Invert bottle to dispense individual drops. May be added to food or mixed in beverages. Do not refrigerate.

Other Ingredients: Medium Chain Triglycerides, Mixed Tocopherols.

Free of: Gluten, dairy, soy, egg, tree nuts, peanuts, artificial colors, flavors, and preservatives.

Also need an HTMA test? To order or re-order the Trace Elements Hair Tissue Mineral Analysis, tap/click here.

⚠️ Warning

Contraindicated in individuals with a history of hypersensitivity to any ingredient. If pregnant, consult your health professional before use. Vitamin K2 interferes with anticoagulant medications (e.g., warfarin/Coumadin) — concurrent use should be avoided without medical supervision. Keep out of the reach of children.

* 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.