Core Med Science Vitamin D3 2,000 IU + K2 100 mcg (60 capsules)
Label read Sep 13, 2026. Where the data comes from
Is Core Med Science third party tested? · Which vitamin D3 brands are third-party tested?
Cost
- One capsule holds 2,000 IU of vitamin D3, 2 times the 1,000 IU comparison dose. Capsules cannot be split.
- Printed as 2000 IU per capsule; no mcg figure on the panel.
Delivery
Buying more than one? Calculate the order
Change the quantity to see the actual container subtotal and whether it reaches the recorded free-delivery threshold.
- Container subtotal
- $16.99
- Delivery
- Unknown
- At least, before delivery & tax
- $16.99
- Per 1,000 IU vitamin D3, before delivery
- $0.142
60 labeled servings in this order. Comparison doses are a price yardstick, not advice about how much to take.
Delivery is extra; the retailer has not published a rate we can apply.
Set the quantity at the retailer; this calculator does not add items to a cart. Uses the recorded unit price with no coupon or quantity discount. Tax is extra. Delivery terms apply to the contiguous US unless the policy says otherwise.
Delivery terms and limits
Free shipping on orders of $75 or more, from the announcement bar on coremedscience.com, first read August 31, 2026 and read again on September 28, 2026 with the same figure. The shipping policy page itself states no domestic threshold. No rate is published below $75, so delivered cost below it is Unknown and those listings are left out of cheapest-delivered claims.
Where to buy
Ordered by price, lowest first, and labeled so you can see what each link earns us. Commission is never an input to that ordering. If the cheapest retailer pays us nothing, that is still the one we send you to. No link on this page earns us anything; every Buy button is a plain retailer link.
Price history
Latest recorded price: $16.99 at Core Med Science (direct), checked . Unchanged since we started checking on Sep 13 (36 checks).
- Out of stock recorded Sep 13; back in stock recorded Oct 8.
We check each price about once a day, so this is the range we recorded, not necessarily every price there has been. It says what changed, not why, and nothing about where the price goes next.
Verification, Tier A: Independently certified
This exact package is inside the certifier’s own scope: named on an NSF Certified for Sport listing, or, for USP Verified, the product is in USP’s directory and its mark is on this package’s label. Both audit the manufacturing site and both confirm the label’s own claims against the finished product. They are not interchangeable beyond that: NSF Certified for Sport also screens for substances banned in sport, and USP Verified does not. USP instead checks that the product dissolves and releases within a specified time. What each program checks is set out per program below.
- Current listing found: NSF Certified for Sport.
What NSF Certified for Sport checks
| Confirms the label’s dose | Yes |
| Tests for heavy metals / contaminants | Yes |
| Screens for substances banned in sport | Yes |
| Reviews manufacturing | On-site audit |
| Testing frequency | Periodic |
No test reports located for this product.
Label
What this rests on: prices we last recorded at the retailer named on each product page, which go stale, and each page says when it was checked; the products we track, not every product sold, and Amazon and Walmart are not among the stores; listings and labels read at the source, each linked from the page. Found an error? Tell us. The full method: How we compare.