$29.99 per container, before delivery
$1.00 per 1,000mg vitamin C, before delivery
Delivery extra; amount unknown
Price checked Nov 13, 2026.
Buy at Core Med Science (direct) →Label, prices & sources →Core Med Science Liposomal Vitamin C Liquid, Sunflower Formula (5 fl oz)
D · None located
Label read Oct 17, 2026. Where the data comes from
Vitamin C price comparison · Is Core Med Science third party tested? · Which vitamin C brands are third-party tested?
Comparing with a package we do not list? Cost per dose calculator
Cost
$0.833
per 1,000mg vitamin C
$24.99
per container · Core Med Science (direct)
$24.99
a month at one dose a day, before delivery
Also contains Bioflavonoids (from hesperindin complex) 10 mg. The price per dose counts vitamin C only.
Amount per serving
1,000mg vitamin C
Upper intake level
Adults, 2,000mg a day, from food, beverages and supplements together. One serving of this product holds 1,000mg, less than that level on its own. This upper intake level is for vitamin C only. It does not cover Bioflavonoids (from hesperindin complex) 10 mg, which the label also prints.
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.
Source: NIH Office of Dietary Supplements, Vitamin C: Fact Sheet for Consumers · checked Oct 17, 2026
Definition: NIH Office of Dietary Supplements, Dictionary of dietary supplement terms: what an upper intake level is · checked Oct 8, 2026
Servings per container
30
Units needed per dose
5.00 milliliters
Doses per container
30.0
Cost per serving
$0.833
- Printed on this bottle's own panel image as "Vitamin C (as sodium ascorbate, ascorbic acid) 1000 mg" in a "Serving Size: 5 milliliters (about 1 teaspoon)" serving with "Servings per Bottle: 30"; the front prints "150 ml (5 fl. oz.)", and 30 servings of 5 ml is 150 ml. We compare milligrams of vitamin C, and the label prints milligrams, so nothing is converted. The panel's "Sodium (as sodium ascorbate) 125 mg" line is the sodium of the sodium ascorbate the Vitamin C line names, not an added active. Its "Phosphatidylcholine Complex (from Non-GMO Sunflower Lecithin) -Glycerin 500 mg" line is read here as the material of the liposome the front names ("LIPOSOMAL VITAMIN C"), not as a second active ingredient. The one added active is "Bioflavonoids (from hesperindin complex) 10 mg", so the package is marked as carrying a second active; the price per dose is for the 1000 mg of vitamin C only. The front prints "LIPOSOMAL VITAMIN C SUNFLOWER" and "Liquid"; the store titles the product "Sunflower Formula". The current label prints no vegan, gluten or allergen statement, so those stay Unknown.
Delivery
Delivery cost
Applies, amount not published
Delivery is NOT free on this order. It is $50.01 short of free delivery (orders of $75.00 or more). This retailer does not publish one fixed delivery rate, so we cannot tell you exactly what delivery will add. 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, October 17 and November 1, 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.
Cost per dose delivered
at least $0.833
We will not put a number on this. The product price is the least you could pay, not what you will pay. To know the delivered cost in advance, reach the free-delivery threshold or choose a retailer that publishes its rate.
To get free delivery
Spend $50.01 more at Core Med Science (direct)
Delivery policy: Core Med Science (direct), Core Med Science (direct) delivery terms, re-read November 1, 2026 · checked Nov 1, 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
- $24.99
- Delivery
- Unknown
- At least, before delivery & tax
- $24.99
- Per 1,000mg vitamin C, before delivery
- $0.833
30 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 Nov 13, 2026.
View this package at Core Med Science (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 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, October 17 and November 1, 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
Core Med Science (direct) · lowest recorded available price
we earn nothing on this link
checked Nov 13, 2026$24.99Buy
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 retailer with the lowest current price 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: $24.99 at Core Med Science (direct), checked . Unchanged since we started checking on Oct 17 (29 checks).
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 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.
- 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 no listing names this package. The Certified for Sport directory holds two vitamin C rows under this brand, both "Vitamin C (500mg)": 1802300, filed under "Core Med Science", and 1691898, filed under "Core Med Science / OIAM Performance". Both listing pages, opened on Oct 17, 2026, print Package Size "30" and Serving Size "1 capsule", and the Supplement Facts image each one files prints "Serving Size: 1 Capsule", "Servings Per Container: 30" and "Vitamin C (as Ascorbic Acid) 500mg"; the image filed with 1691898 adds "Other Ingredients: Vegetable Cellulose (from capsule), MCC, Stearic acid, Magnesium Sterate" and its photograph is a white OIAM carton. That is a plain ascorbic acid capsule, 30 to a package. This bottle is a liposomal vitamin C liquid, 150 ml in 5 ml servings, so neither listing names it. The brand's own store sells no 30-capsule vitamin C. Absence from a database is not a failed test.
Source: NSF International, NSF Certified for Sport listings 1802300 and 1691898, Core Med Science "Vitamin C (500mg)", read against the brand's liposomal vitamin C packages · checked Oct 17, 2026USP Verified: checked, not listed
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.
Source: USP, USP Verified Products directory, full read, September 21, 2026 · checked Sep 21, 2026Informed Sport: checked, not listed
Core Med Science 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.
Source: LGC (Informed Sport), Informed Sport product list, October 2026 PDF, as read October 3, 2026 · checked Oct 3, 2026Informed Choice: checked, not listed
Core Med Science 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.
Source: LGC (Informed Choice), Informed Choice product list, October 2026 PDF, as read October 3, 2026 · checked Oct 3, 2026No 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
liquid
Serving size
5 milliliters
Active ingredient
Vitamin C: 1,000mg as labeled
Printed on this bottle's own panel image as "Vitamin C (as sodium ascorbate, ascorbic acid) 1000 mg" in a "Serving Size: 5 milliliters (about 1 teaspoon)" serving with "Servings per Bottle: 30"; the front prints "150 ml (5 fl. oz.)", and 30 servings of 5 ml is 150 ml. We compare milligrams of vitamin C, and the label prints milligrams, so nothing is converted. The panel's "Sodium (as sodium ascorbate) 125 mg" line is the sodium of the sodium ascorbate the Vitamin C line names, not an added active. Its "Phosphatidylcholine Complex (from Non-GMO Sunflower Lecithin) -Glycerin 500 mg" line is read here as the material of the liposome the front names ("LIPOSOMAL VITAMIN C"), not as a second active ingredient. The one added active is "Bioflavonoids (from hesperindin complex) 10 mg", so the package is marked as carrying a second active; the price per dose is for the 1000 mg of vitamin C only. The front prints "LIPOSOMAL VITAMIN C SUNFLOWER" and "Liquid"; the store titles the product "Sunflower Formula". The current label prints no vegan, gluten or allergen statement, so those stay Unknown.
Second active
Bioflavonoids (from hesperindin complex) 10 mg
Printed on the panel, and not counted in the price per dose.
Vegan
Unknown
Gluten free
Unknown
Allergens
Unknown
Other ingredients
Purified water, natural flavors (flavoring), xanthan gum, gum arabic, stevia leaf extract (sweetener), potassium sorbate
Label facts rest on: Core Med Science, Supplement Facts panel and front label: Core Med Science Liposomal Vitamin C Liquid, Sunflower Formula, 150 ml · checked Oct 17, 2026
Other tracked packages
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.