DeliveredDose

Nutricost Calcium Ascorbate Powder, Unflavored (250 g)

D · None located
$16.97 at Nutricost (direct) · $0.084 per 1,000mg
Delivery extra; amount not published
Buy at Nutricost (direct)

Label read Oct 17, 2026. Where the data comes from

Which vitamin C brands are third-party tested?

Cost

$0.084
per 1,000mg vitamin C
$16.97
per container · Nutricost (direct)
$2.53
a month at one dose a day
Amount per serving
805mg vitamin C
Upper intake level
Adults, 2,000mg a day, from food, beverages and supplements together. One serving of this product holds 805mg, less than that level on its own.
An upper intake level is the largest daily intake unlikely to cause harm for most people. It is not a recommendation about what to take.
Servings per container
250
Units needed per dose
1.24 scoops
Doses per container
201.3
Cost per serving
$0.068
  • Printed on this tub's own panel as "Vitamin C 805mg 895%" in a "Serving Size: 1 Scoop (1g)" serving, with "Servings Per Container: 250". The comparison basis is milligrams of vitamin C and the panel prints milligrams, so nothing is converted. The panel names no form on its Vitamin C line, so none is recorded; the package's own name is "Calcium Ascorbate". The panel also prints "Calcium 90mg 7%", naming no form, beside "Other ingredients: None."; on a package sold as calcium ascorbate it is not marked as a second active. The front face prints "NET. WT. 8.9 OZ (250G)". The front and the panel carry a "VEGETARIAN PRODUCT" seal and no vegan seal, and the side of the label a "GLUTEN-FREE" bullet.

Delivery

Delivery cost
Applies, amount not published
Delivery is NOT free on this order. It is $42.03 below the $59.00 threshold, and this retailer does not publish a rate, so we cannot tell you what it will add. Free continental US shipping on orders above $59, from the site-wide banner, first read September 1, 2026: "FREE CONTINENTAL U.S. SHIPPING ON ALL ORDERS ABOVE $59". The policy page showed the same threshold on September 26 and October 17, 2026. The wording covers the continental US only, so the cost to Alaska, Hawaii and US territories is Unknown. No rate is published below the threshold. On September 1, 2026 the site was also running a sitewide discount code that could not be combined with free shipping, so the advertised price and the checkout price can differ here.
Cost per dose delivered
at least $0.084
We will not put a number on this. The product price is a floor, not the price you will pay. Reaching the free-delivery threshold, or choosing a retailer that publishes its rate, is the only way to know in advance.
To get free delivery
Spend $42.03 more at Nutricost (direct)
Delivery policy: Nutricost (direct), Nutricost (direct) delivery terms, re-read October 17, 2026 · checked Oct 17, 2026
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
$16.97
Delivery
Unknown
At least, before delivery & tax
$16.97
Per 1,000mg vitamin C, before delivery
$0.084

250 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.

Unit price checked Oct 17, 2026.
View this package at Nutricost (direct) →

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 policy: Nutricost (direct), Nutricost (direct) delivery terms, re-read October 17, 2026 · checked Oct 17, 2026
Delivery terms and limits

Free continental US shipping on orders above $59, from the site-wide banner, first read September 1, 2026: "FREE CONTINENTAL U.S. SHIPPING ON ALL ORDERS ABOVE $59". The policy page showed the same threshold on September 26 and October 17, 2026. The wording covers the continental US only, so the cost to Alaska, Hawaii and US territories is Unknown. No rate is published below the threshold. On September 1, 2026 the site was also running a sitewide discount code that could not be combined with free shipping, so the advertised price and the checkout price can differ here.

Where to buy

Nutricost (direct) · lowest recorded available price
we earn nothing on this link
checked today
$16.97Buy

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: $16.97 at Nutricost (direct), checked . First checked on Oct 17.

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 D: Could not locate independent data

We could not locate independent testing or certification for this product. That is a statement about our search, not about the product. These programs certify what a company submits to them, so a product can be absent simply because it was never entered, which is not a finding against it. Which certifier databases we searched, and when, is listed below. Where a program is not listed there, we have not checked it and do not imply anything either way.

  • Searched 4 certifier databases and found no listing for this product, and located no published test results. Programs we did not search are named below as not checked.
  • The testing claim we recorded for this product, with where it appeared: "THIRD PARTY TESTED" (a bullet on the side of the label, naming no program and no laboratory). With no program named there is no listing to open against it, so it does not raise the verification level.
  • Checked NSF Certified for Sport database on Oct 17, 2026: not listed.
  • Checked USP Verified database on Sep 21, 2026: not listed.
NSF Certified for Sport: checked, not listed
Checked and absent. This site's capture of the Certified for Sport directory, taken from NSF's public search results on Sep 23, 2026, keeps every listing filed under a brand this site prices and holds no row under Nutricost; the whole-directory read of Sep 21, 2026 found the name nowhere either. The eight listings in the capture whose product names carry "vitamin c" or "ascorb" belong to Nordic Naturals, OIAM, OIAM Performance, Core Med Science, KREO and Vital Proteins. The label on this package prints no NSF mark. Absence from a database is not a failed test. NSF's whole directory was read again on Oct 17, 2026, 2,581 listings, and still holds no vitamin C listing under this brand.
Source: NSF Certified for Sport, NSF Certified for Sport directory, full read, October 17, 2026 · checked Oct 17, 2026
USP Verified: checked, not listed
Checked and absent. USP's own Verified Products directory was read page by page in a browser on Sep 21, 2026: 16 pages, 159 products, 16 brands, captured in this site's directory snapshot. This brand does not appear in the directory or in its brand facet, and no product in it names this brand. USP verifies the products a company submits to it, so this records which products were submitted and nothing else. Absence from a database is not a failed test.
Source: USP, USP Verified Products directory, full read, September 21, 2026 · checked Sep 21, 2026
Informed Sport: checked, not listed
Nutricost does not appear as a brand in LGC's own Informed Sport product list of October 2026, 497 brands and 1,887 product lines, as read on Oct 3, 2026. Absence from a list is not a failed test: Informed Sport certifies the products a company submits, so this records only that none from this brand is in the program's published list on that date.
Source: LGC (Informed Sport), Informed Sport product list, October 2026 PDF, as read October 3, 2026 · checked Oct 3, 2026
Informed Choice: checked, not listed
Nutricost does not appear as a brand in LGC's own Informed Choice product list of October 2026, 201 brands and 853 product lines, as read on Oct 3, 2026. Absence from a list is not a failed test: Informed Choice certifies the products a company submits, so this records only that none from this brand is in the program's published list on that date.
Source: LGC (Informed Choice), Informed Choice product list, October 2026 PDF, as read October 3, 2026 · checked Oct 3, 2026

No test reports located for this product.

Not established: Heavy-metal testing, Label-accuracy testing, Vegan status.
Absence of data is not evidence that a product is clean. It means nobody has published a result we could find.

Label

Form
powder
Serving size
1 scoop
Active ingredient
Vitamin C: 805mg as labeled
Printed on this tub's own panel as "Vitamin C 805mg 895%" in a "Serving Size: 1 Scoop (1g)" serving, with "Servings Per Container: 250". The comparison basis is milligrams of vitamin C and the panel prints milligrams, so nothing is converted. The panel names no form on its Vitamin C line, so none is recorded; the package's own name is "Calcium Ascorbate". The panel also prints "Calcium 90mg 7%", naming no form, beside "Other ingredients: None."; on a package sold as calcium ascorbate it is not marked as a second active. The front face prints "NET. WT. 8.9 OZ (250G)". The front and the panel carry a "VEGETARIAN PRODUCT" seal and no vegan seal, and the side of the label a "GLUTEN-FREE" bullet.
Vegan
Unknown
Gluten free
Yes
Allergens
Unknown
Other ingredients
Unknown
Label facts rest on: Nutricost, Supplement Facts panel and label faces: Nutricost Calcium Ascorbate Powder, Unflavored, 250 g · checked Oct 17, 2026

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.