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.
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" (one of three seals on a "TRUSTED QUALITY" image in the gallery of the store page this site's Buy link opens, read Oct 17, 2026; it names no laboratory and no program). 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. The full Certified for Sport directory was read on Oct 17, 2026 and carries 2,581 listings, 30 of them under the three spellings this company is filed under (BulkSupplements.com, Bulk Supplements and BULK SUPPLEMENTS), covering creatine, whey, casein, collagen, amino acids, fish oil, magnesium, zinc, vitamin D3, melatonin, glutathione and several botanicals. None is a vitamin C product, none of the nine listings in the directory whose product name contains "vitamin c" is this company's, and no product name in the directory contains "ascorb". The label on this package prints no NSF mark. Absence from a database is not a failed test.
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.
BulkSupplements.com 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.
BulkSupplements.com 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.
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
capsule
Serving size
2 capsules
Active ingredient
Vitamin C: 1,000mg as labeled
Printed on this bottle's own label as "Vitamin C (as Ascorbic Acid) 1000mg" in a "Serving Size: 2 Veg Capsules" serving, with "Servings per container: 180"; 180 servings of two capsules is the 360 capsules the bottle front names. The comparison basis is milligrams of vitamin C and the label prints milligrams, so nothing is converted. The panel also prints "Rosehip Extract (Rosa canina) (Fruit) 15mg" with no Daily Value, a second active the price per dose does not pay for. The GLUTEN FREE icon and "Allergens: None" are what the gluten free answer rests on; the label calls the capsules "Veg Capsules" and makes no vegan or vegetarian claim for the product, so both are Unknown.
Same category and format and, for vitamin D, the same labeled strength. Different recorded ingredient-form lists are kept separate. Ordered by container price before delivery; only fresh recorded prices are shown. Formulas, flavors and allergens may differ: check each label. These are browsing options, not recommended substitutes.
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.