The short answer: Xyne Bone Support Strips pair Vitamin D3 (sourced from lanolin) with Vitamin K2 (MK-7) in a single sublingual film. Separate D3 and K2 pills deliver the same vitamins via the gut in two daily doses. The strip format offers single-step convenience and sublingual absorption for both fat-soluble vitamins. Vegan note: D3 in Bone Support is sourced from lanolin (sheep's wool oil) and is NOT vegan.
Vitamin D3 (cholecalciferol) and Vitamin K2 (menaquinone, with MK-7 the most bioavailable form) work together for bone health. D3 helps the body absorb calcium from food. K2 helps direct that absorbed calcium into bone tissue rather than soft tissues like arteries.
Taking D3 alone without sufficient K2 can result in well-absorbed calcium settling in places it shouldn't — including arterial walls, where it contributes to calcification.
Xyne Bone Support uses D3 from lanolin. This is a deliberate choice for bioavailability and supply chain consistency, but it means the product is not suitable for vegans.
If you require a vegan D3 supplement, look for D3 specifically labeled as derived from lichen or algae. The Xyne lineup is otherwise vegan; Bone Support is the single exception.
Both vitamins absorb in the small intestine alongside dietary fat. Onset of effect is cumulative over weeks.
A Bone Support Strip combines D3 and K2 in a single sublingual film. The strip dissolves under the tongue in 20–45 seconds, releasing both vitamins for capillary absorption directly into the bloodstream.
For fat-soluble vitamins specifically, sublingual delivery is interesting. D3 and K2 don't require dietary fat for absorption when delivered sublingually — the mucosal route bypasses the lipid-dependent intestinal absorption pathway. You can take a Bone Support strip on an empty stomach.
| Factor | Separate D3 + K2 pills | Bone Support strip |
|---|---|---|
| Number of supplements | Two | One |
| Dose per unit | D3: 1,000–5,000 IU / K2: 100–200 mcg | Moderate combined dose |
| Absorption route | Gut (requires dietary fat) | Sublingual capillary |
| Fat-with-meal required | Yes | No |
| Vegan | Depends on D3 source | NOT vegan (lanolin) |
| Best for | High-dose deficiency repletion | Daily maintenance |
Xyne Bone Support Strips deliver D3 (lanolin-sourced) and K2 (MK-7) in a sublingual strip. Plant-based pullulan film. Third-party tested. NOT vegan due to D3 source.
Are Bone Support strips vegan?
No. Bone Support uses Vitamin D3 sourced from lanolin (sheep's wool oil), which is not vegan.
Why do D3 and K2 belong together?
D3 helps the body absorb calcium from food. K2 directs absorbed calcium into bone tissue rather than soft tissues like arteries.
Do I need to take Bone Support with food?
No. Because the strip delivers D3 and K2 sublingually, the vitamins don't require dietary fat for absorption.
How long until I notice benefits from D3+K2 supplementation?
Serum D3 levels rise over 4–8 weeks of consistent intake. Bone health effects are measured over months and years.
What's the difference between MK-7 and MK-4 K2?
MK-7 has a longer half-life (3 days vs 8 hours for MK-4) and accumulates better with daily intake.
Can I take Bone Support if I'm on blood thinners?
Vitamin K can interact with warfarin. Talk to your doctor.
Is there a vegan alternative to Bone Support?
Not currently in Xyne's lineup. Look for products specifically using D3 sourced from lichen or algae.
Designed to support a healthy diet — not replace it. Statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease. Bone Support is not vegan — Vitamin D3 is sourced from lanolin.
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