EthosSelect
Thorne

Vitamin D + K2 Liquid

Clean maintenance D3+K2 liquid; K2 is the shorter-acting MK-4 form

Research last verified August 18, 2026

Score
Pending

Score Pending

A numerical Ethos Score requires structured evidence, formula, and sufficient coverage. Missing data is never converted to a pass or a zero.

The Takeaway

A low-cost, clean liquid D3+K2 maintenance formula, though the K2 form is the shorter-acting MK-4 type.

Best For

  • • People wanting a simple, inexpensive daily D3+K2 maintenance liquid

Watch Out For

  • • K2 is MK-4, not the longer-acting MK-7 form some experts prefer

Why this score

Each dimension stays pending until the exact structured inputs needed to score it are available.

Evidence & Dose
Pending

D3 well-established; added K2 benefit at this dose/form less robustly proven for general use

Formula Quality
Pending

Clean maintenance D3+K2 liquid; K2 is the shorter-acting MK-4 form

Testing & Transparency
Pending

Manufacturer claim located; independent certification record not located for this exact SKU

Toxins & Contaminants
Pending

"No Product-Specific Data Found" PFAS: No Product-Specific Data Found.

Real Cost / Value
Pending

Verified price is approximately $0.06 per labeled serving.

Real Cost

One-time purchase

One-time purchase

$34.00

Cost per daily serving: $0.06

About $1.70 for 30 days · $20.68 per year

Check Price

Formula

Key Active Ingredients

  • Vitamin D3 (cholecalciferol)

  • Vitamin K2 (Menatetrenone, MK-4)

  • Medium Chain Triglycerides

  • Mixed Tocopherols

  • Vitamin d3 iu

    1000

  • Vitamin d3 mcg

    25

  • Vitamin k2 mcg

    200

Testing & Transparency

Independent certification

No public certification verification is listed

Public test source

No product-specific test source is linked

Manufacturer claim located; independent certification record not located for this exact SKU

Toxin & Forever Chemical Report

This section shows product-specific contaminant and PFAS (forever chemical) test results where available. “No Product-Specific Data Found” is not a purity pass — it means no public test result was located for this exact product. Organic, non-GMO, and similar certifications are agricultural standards and do not verify contaminant levels.

Heavy Metals (Lead, Cadmium, Arsenic, Mercury)
No Product-Specific Data Found
PFAS / Forever Chemicals
No Product-Specific Data Found

"No Product-Specific Data Found" PFAS: No Product-Specific Data Found.

Evidence

Evidence & dose context

Moderate

D3 well-established; added K2 benefit at this dose/form less robustly proven for general use

Sources

Research source · iherb.com
Research source · instalab.com
Official product page · thorne.com