VitaminDB Data · July 2026
The real cost of Vitamin K2, per dose
For the exact same amount of Vitamin K2 — the same IU of active ingredient — the priciest products cost a 25× premium over the cheapest. We measured it across 42 tracked products, normalized to cost per IU.
Is the premium brand worth it?
On price, usually not. Two bottles of Vitamin K2 can carry the identical active dose at wildly different prices — the spread between the cheap and the premium end is 25× per IU, from a low around $0.0000 to a high near $0.0001. A higher sticker price is not a reliable signal of a better product; most of that gap is branding and margin, not more Vitamin K2. Pay up only for a verifiable difference — third-party testing, or a specific better-absorbed form — never for the packaging.
Right now the best value in our catalog is BulkSupplements.com Vitamin K2 Powder - Vitamin K2 MK-7 at $0.01 per serving — against a catalog median of $0.199/serving.
How we calculated it
Cost per active unit = price ÷ (servings per container × dose per serving), measured in Vitamin K2’s dominant dose unit (IU) so we only ever compare like with like — IU of Vitamin K2 against IU of Vitamin K2.
Spread = the 90th-percentile cost per IU ÷ the 10th-percentile. Using the 10th/90th percentiles (not the absolute min/max) deliberately excludes one-off outliers and mislabeled listings. Based on 42 active Vitamin K2 products from our live Amazon US catalog, recomputed hourly. This is a value comparison, not medical or dosing advice.
Part of the catalog-wide supplement price-spread study (median 8.1× across 41 nutrients).
Free to cite
Quote these figures with a link back to this page. Key data point (as of July 2026): for the same dose of Vitamin K2, the priciest products cost 25× more than the cheapest per IU, across 42 tracked products.
Vitamin K2 cost FAQ
- How much does Vitamin K2 vary in price for the same dose?
- For the same amount of Vitamin K2 (per IU), the most expensive products cost about 25× more than the cheapest — based on 42 tracked products, comparing the 90th vs 10th percentile cost per IU. The median is $0.0000 per IU.
- Is the premium Vitamin K2 brand worth it?
- On price alone, usually not: the priciest options deliver the same IU of Vitamin K2 for up to 25× the cost. A higher price is not a reliable quality signal — pay more only for a verifiable difference such as third-party testing or a specific better-absorbed form, not for packaging.
- What is the cheapest Vitamin K2 per dose right now?
- BulkSupplements.com Vitamin K2 Powder - Vitamin K2 MK-7 at $0.01 per serving is the lowest cost-per-dose Vitamin K2 in our catalog. See the full ranking on the Best Vitamin K2 page.