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Verification level 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. The databases we searched, and when, are listed below. If a program is not listed, we did not check it, and we make no claim about it either way.
Searched 4 certifier databases and found no listing for this product, and located no published test results. A program not named below was not checked for this product.
Testing claim we recorded, and where it appeared: "Ingredients must pass our 3rd party lab tests to ensure they’re safe, pure, and potent." (sentence in the product page's own description, read Oct 17, 2026). It names no laboratory and no program. There is no listing to check it against. 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 read of Oct 17, 2026 (2,581 listings) holds no row under Micro Ingredients, for this category or any other, and none of the nine listings whose product name contains "vitamin c" is this brand's. The label on this package prints no NSF mark. Absence from a database is not a failed test.
Checked and absent. We read all 16 pages of USP's own Verified Products directory in a browser on Sep 21, 2026: 159 products from 16 brands. We saved a copy. This brand is not in it: not in the directory's brand filter, and not in any product name. USP verifies the products a company submits to it, so this shows only which products were submitted. Not being listed is not a failed test.
Micro Ingredients is not on the October 2026 Informed Sport product list, which we read on Oct 3, 2026. The list, published by LGC, has 497 brands and 1,887 product lines. Not being listed is not a failed test. Informed Sport certifies what a company submits, so this means only that no product from this brand was on the published list that day.
Micro Ingredients is not on the October 2026 Informed Choice product list, which we read on Oct 3, 2026. The list, published by LGC, has 201 brands and 853 product lines. Not being listed is not a failed test. Informed Choice certifies what a company submits, so this means only that no product from this brand was on the published list that day.
No laboratory report with figures is recorded here 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 we found no published result for that testing.
Label
Form
capsule
Serving size
4 capsules
Active ingredient
Vitamin C: 2,500mg as labeled
Printed on this bottle's own panel as "Vitamin C (as ascorbic acid) (Liposomal) (Fat-soluble) 2,500mg 2,778%" in a "Serving Size 4 Vegetarian Capsules" serving, with "Servings Per Container 60"; 60 servings of four capsules is the 240 capsules the bottle front names. We compare milligrams of vitamin C, and the label prints milligrams, so nothing is converted. The panel and the product name both say liposomal. The phosphatidylcholine is listed under other ingredients with no amount, so it is not a second active; the panel breaks "Phosphatidyl- choline" across two lines, and the other ingredients are recorded as printed. The panel prints "Free of: Wheat, gluten, soy, dairy & tree nuts.", which is what the gluten free answer and the free-of allergen rows rest on. No vegan or vegetarian claim is made for the product, so both are Unknown.
Vegan
Unknown
Gluten free
Yes
Allergens
free of wheat, free of soy, free of milk, free of tree nuts
Packages in the same category and format, with the same ingredients. Where we recorded the ingredient forms from the label, only packages with the same forms are shown. Where a category is compared by strength, they also have the same labeled strength. Only current prices are shown, cheapest container first. Prices are before delivery. Formulas, flavors and allergens may differ: check each label. These are browsing options, not recommended substitutes.
What this rests on: Prices are the last ones we recorded at the retailer named on each product page. Prices go stale, so each page says when it was checked. We track some products, not every one sold, and Amazon and Walmart are not among our stores. Listings and labels are read at the source, and each page links to them. Found an error? Tell us. The full method: How we compare.