“Elderberry 500 mg per serving”
Evidence →The label promises 500 mg per serving. The panel says 500 mg. They match.
Exact product checked · barcode not publishedVITBOOST · checked Jul 22, 2026 · on sale since Oct 2, 2024🇺🇸 USPTO wordmark owner · Gurin Products, LLC · CALIFORNIA, USA; WASHINGTON, USAPackage says manufactured for: Fresh Leaf Nutrition · 2522 Chambers Rd, Suite 100
Tustin, CA-92780
Quick read · VITBOOST
VITBOOST Elderberry Immune Support Supplement 8 in 1 with…
Checked against public sources on July 22, 2026 · LookCloser does not sell or recommend supplements.
60capsules · 30 servings
Does the marketing hold up?
Package and trademark records name different responsible entities. The package says manufactured for: Fresh Leaf Nutrition, 2522 Chambers Rd, Suite 100 Tustin, CA-92780. USPTO names Gurin Products, LLC as the exact wordmark owner. …
Is the dose real?✓Listing and panel agreeboth say 500 mg of Black Elderberry Fruit Powder
What a serving costsNo price found for this exact barcode
Is it tested?Claimed — no lab or certificate found
Who’s behind it?🇺🇸Gurin Products, LLClimited liability company · CALIFORNIA, USA; WASHINGTON, USA
Is it the real thing?No barcode publishedso it can’t be matched against certification, recall or other retailer records
Trouble on record?Recall check not run yeta gap in our records, not a finding about the product
“Couldn’t verify” means we looked and found no public proof — not a mark against the product. Most supplement claims cannot be independently verified by anyone, so grey is the normal state of this industry.
1✓ checked out2◖ partly confirmed2? couldn’t verifyno contradictions · no recalls
The label itself
What the Supplement Facts panel says
| Vitamin C (as Ascorbic Acid) | 750 mg |
|---|---|
| Vitamin D3 (as Cholecalciferol) | 125 mcg |
| Zinc (as Zinc Oxide) | 60 mg |
| Black Elderberry Fruit Powder (Sambucus nigra) | 500 mg |
| Echinacea purpurea Powder (Whole Plant) | 50 mg |
| Ginger Root Powder (Zingiber officinale) | 20 mg |
| Turmeric Root Powder (Curcuma longa) | 10 mg |
| Ashwagandha Root Powder (Withania somnifera) | 10 mg |
Printed on the package: GLUTEN FREE · SHELLFISH FREE · DAIRY FREE · EGG FREE · SUGAR FREE · SOY FREE · ALCOHOL FREE · NUT FREE
We read 8 lines from the package photograph. It is our transcript of the label, not the manufacturer’s panel, and it may be incomplete.
Marketing claims, checked
The checks, one by one
1 promise checks out. 4 could not be fully confirmed from public sources.
✓Matches the label1
◐Partly confirmed2
“Quality, Made in the USA - Proudly manufactured in a GMP certified facility in the USA, our capsules adhere to rigorous quality”
Evidence →“GMP-certified” describes factory processes, not what is in the bottle. The claim does not name a certifier or public register that a shopper can check.
“VITBOOST Elderberry Immune Support Supplement 8 in 1 with Vitamin D 5000”
Evidence →Published research exists for ingredients in this formula. Whether this product’s doses match those studies could not be confirmed.
Ingredient research can support context, but it is not a trial of this exact product.
?Couldn’t verify independently2
“Quality, Made in the USA - Proudly manufactured in a GMP certified facility in the USA, our capsules adhere to rigorous quality”
Evidence →“Made in USA” can describe only final bottling. Ingredient-sourcing records were not located for this product.
“batch undergoes third-party testing for purity and potency, ensuring you receive a high-quality product you can”
Evidence →No named laboratory or lot-specific certificate was found for this exact product. No exact brand product page was available for a document check. NSF, IFOS, USP, and Informed-Sport were not checked in this record. This is a public-evidence limit, not a finding that testing did not occur.
We looked and found no public proof. That does not count against the product.
Marketing language, not scored
PREMIUM QUALITY YOU CAN TRUST
Quick read · 2 useful findings
What is worth knowing.
Headlines first. Open evidence only when you want the source trail.
CheckedIs the label honest?
Every ingredient shows its amount · 8 ingredients listed.
Every ingredient shows its real amount — nothing is hidden in a proprietary blend.
Evidence and sources
The panel gives a per-ingredient amount rather than hiding quantities inside a proprietary blend, so each one can be compared to published research.
Locked evidence record →Open the full source-linked findingCheckedCan you trust the review pattern?
Reviews rose from 191 to 281 between August 6, 2025 and August 25, 2026 — no sudden jump.
A count that moves steadily is ordinary. A sudden burst is what deserves a closer look.
Evidence and sources
Written reviews rose from 191 to 281 between August 6, 2025 and August 25, 2026. The largest rise inside any single 30-day window was about 26, so the count moved in steps rather than in one burst.
Locked evidence record →Open the full source-linked findingWho owns the brand wordmark?
🇺🇸
Gurin Products, LLCLimited Liability Company · exact supplement-class mark for VITBOOST
Filed address
2522 Chambers Rd, Suite 100, Tustin, CALIFORNIA 92780, 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 ↗
Research behind the findings
Dose and research context
We could not match an amount on this product to a studied range for the same ingredient, so these links are ingredient background rather than a measurement of this product.
Background reading
What the research says about these amounts
Not a score. Studies disagree with each other and change over time, so this sits beside the evidence rather than counting toward it — it is here so you can read the sources yourself.
The panel lists 10 mg of turmeric / curcumin per serving. Studies we found used 500 mg–2 g a day, so this sits below that range.
0studied 500 mg–2 g
Study ranges differ between trials and change as research changes. This is background reading, not a pass, a failure, or a recommendation.
The panel lists 10 mg of ashwagandha per serving. Studies we found used 250 mg–600 mg a day, so this sits below that range.
0studied 250 mg–600 mg
Study ranges differ between trials and change as research changes. This is background reading, not a pass, a failure, or a recommendation.
The panel lists 60 mg of zinc per serving. Studies we found used 8 mg–40 mg a day, so this sits above that range.
0studied 8 mg–40 mg
Study ranges differ between trials and change as research changes. This is background reading, not a pass, a failure, or a recommendation.
Buying options
Where you can check or buy it
Only the submitted seller page is identity-certain. Other destinations are shown as leads until a shared UPC/GTIN confirms the exact product.
Amazon
Submitted listing$13.93
Lowest New observed via Keepa on 2026-08-29.
View on Amazon ↗iHerb
Not confirmedNo price confirmed
No matching product page was confirmed in the current record. Search results cannot be attached as this product until the UPC/GTIN matches.
Search iHerb ↗Target
Not confirmedNo price confirmed
No matching product page was confirmed in the current record. Search results cannot be attached as this product until the UPC/GTIN matches.
Search Target ↗Walmart
Not confirmedNo price confirmed
No matching product page was confirmed in the current record. Search results cannot be attached as this product until the UPC/GTIN matches.
Search Walmart ↗Prices and stock are point-in-time observations. Related pages are never used as product evidence. No affiliate links; LookCloser earns nothing from these sellers.
Want the complete evidence trail?
The summary stops at product-specific facts. The full report preserves every source, calculation, limitation, and unresolved check for review or sharing.
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.