Exact product checked · GTIN 00023249090021Sports Research · checked Jul 21, 2026 · on sale since Apr 1, 2020🇺🇸 USPTO wordmark owner · Sports Research Corporation · CALIFORNIA, USA
Quick read · Sports Research
Sports Research High Potency Vitamin C Supplement
Checked against public sources between July 21 and July 24, 2026 · LookCloser does not sell or recommend supplements.
240capsules
240servings per container
Does the marketing hold up?
Reviews went from 62 to 1,122 between August 7, 2025 and August 20, 2026 — 81% of them arrived in a single month. A count that moves steadily is ordinary. A sudden burst is what deserves a closer look.
Is the dose real?✓Listing and panel agreeboth say 1,000 mg of Vitamin C
What a serving costs$0.10per serving, at the checked price
Is it tested?No testing claim made
Who’s behind it?🇺🇸Sports Research Corporationcorporation · CALIFORNIA, USA
Is it the real thing?✓Barcode matches outside records
Trouble on record?✓No recalls found
The label itself
What the Supplement Facts panel says
Serving size 1 Veggie Capsule · 240 servings per container
Vitamin C (as ascorbic acid)
1000 mg
Printed on the package:Non-GMO · Vegan · Gluten-Free · NON GMO Project VERIFIED · CERTIFIED VEGAN · SPORTS RESEARCH
We read 1 lines from the package photograph. It is our transcript of the label, not the manufacturer’s panel, and it may be incomplete.
Quick read · 3 useful findings
What is worth knowing.
Headlines first. Open evidence only when you want the source trail.
Needs explanationCan you trust the review pattern?
Reviews went from 62 to 1,122 between August 7, 2025 and August 20, 2026 — 81% of them arrived in a single month.
A count that moves steadily is ordinary. A sudden burst is what deserves a closer look.
Evidence and sources
The dated series runs from 62 written reviews on August 7, 2025 to 1,122 on August 20, 2026. Up to 914 written reviews were added within a single ~30-day window — 81% of the total. Sudden bursts are the usual fingerprint of incentivized or bought reviews; a steady climb is not.
No FDA recall matched this brand in the current search.
We have not found a public label filing for this exact product.
These are evidence gaps, not strikes against the product.
Who owns the brand wordmark?
🇺🇸
Sports Research CorporationCorporation · exact supplement-class mark for SPORTS RESEARCH
Registration5516811
Registered2018-07-17
AssignmentsNo transfers recorded
Filed address 784 W. Channel St., San Pedro, California 90731, UNITED STATES
USPTO identifies the public owner or applicant behind this brand wordmark. This does not by itself identify the product manufacturer or prove where the product was made. Open USPTO source ↗
Same UPC/GTIN observed across 2 sellers. Amazon was lowest at $22.95; iHerb was highest at $23.97 — a $1.02 range at check time.
The brand-page price is shown as a shopping lead only. It is excluded from the exact-product price difference because the page does not publish this record's matching UPC/GTIN.
The observed listing and related brand page repeat 1000 mg. That confirms cross-page consistency of the published claim, not the product contents.
Reference prices only · no affiliate links · every compared seller must publish the matching UPC/GTIN.
Want to inspect the evidence?
The full report shows every source, the exact unresolved question, and the documentation that would settle it.
Record built September 03, 2026. Sources: source listing observed at check time · USPTO Trademark Search · Keepa exact-listing history · NIH / published research · certification and regulator records where available. LookCloser publishes evidence and gaps; it does not advise for or against any supplement. Evidence-based corrections welcome.
