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Elderberry Zinc and Vitamin C

product on market Capsule Double Wood Supplements Safety: 90/100
90/100

This product looks safe

  • Zinc: 50mg is 1.2× the Tolerable Upper Intake Level (40mg)
  • 75% of ingredients have research evidence
C Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

Vitamin C and zinc have strong evidence for supporting immune function, while elderberry and echinacea show more limited evidence in reducing cold duration. Together, these ingredients target immune response and antioxidant support. The overall safety profile for these components is high.

AI-generated summary based on research evidence. Not medical advice.

Alerts

Safety Alerts

Zinc: 50mg is 1.2× the Tolerable Upper Intake Level (40mg)

Label

Product Label

Label for Elderberry Zinc and Vitamin C
Open Full PDF View on NIH DSLD →
Details

Label Data

2 Capsule(s)
Serving Size
30
Servings
Botanical with Nutrients
Product Type
75%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Vitamin C
100 mg (111% DV)
50 mg (455% DV)
Exceeds UL by 1.2× (UL: 40 mg) 263 studies (A:6, B:134)
Market median: 175.0mg (497 products) 11 studies (A:0, B:1)
Market median: 400.0mg (380 products) 36 studies (A:1, B:10)

Other Ingredients

Gelatin Capsule Rice Flour Magnesium Stearate
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested Use: Adults: take 2 capsules daily. Take with food a few hours before or after taking medication.

Warnings & Precautions

Warning: Keep out of reach of children.

If you are pregnant, nursing, or taking prescription medicine, consult your physician before taking this product.

Discontinue use and consult your physician if any side effects occur.

Formulation Notes

Immune system support

Enhanced with echinacea

Additional Information

Storage: Store in a cool, dark place. Do not freeze or expose to moisture or heat above room temperature.

Metadata

Product Details

UPC / SKU8 59793 00773 0
DSLD Entry Date2021-01-22
Product TypeBotanical with Nutrients
FormCapsule
BrandDouble Wood Supplements
DSLD ID241766
Data Updated2026-04-11
Research

Research Evidence

12
Research Sources
48
Avg Quality
4
Rct
4
Systematic Review
2
Meta Analysis
1
Clinical Trial
1
Openfda Safety
B Black elderberry (Sambucus nigra) supplementation effectively treats upper respiratory symptoms: A meta-analysis of randomized, controlled clinical trials
Meta Analysis Complementary therapies in medicine 2019 PubMed DOI
C Elderberry Supplementation Reduces Cold Duration and Symptoms in Air-Travellers: A Randomized, Double-Blind Placebo-Controlled Clinical Trial
Rct Nutrients 2016 PubMed DOI
C Elderberry for prevention and treatment of viral respiratory illnesses: a systematic review
Systematic Review BMC complementary medicine and therapies 2021 PubMed DOI
C Effect of herbal compounds on coronavirus; a systematic review and meta-analysis
Meta Analysis Virology journal 2022 PubMed DOI
C Anthroposophic medicine in the treatment of pediatric pseudocroup: A systematic review
Systematic Review Complementary therapies in medicine 2018 PubMed DOI
C Effect of Dietary Supplementation with Lutein, Zeaxanthin, and Elderberries on Dry Eye Disease (DED) and Immunity: A Randomized Controlled Trial.
Rct Nutrients PubMed DOI
C A systematic review on the sambuci fructus effect and efficacy profiles
Systematic Review Phytotherapy research : PTR 2010 PubMed DOI
C An evidence-based systematic review of elderberry and elderflower (Sambucus nigra) by the Natural Standard Research Collaboration
Systematic Review Journal of dietary supplements 2014 PubMed DOI
C Physical Fitness, Body Composition and Frailty in Elderly People.Exercise Program Effecsts. EXERNET Elder 3.0
Clinical Trial ClinicalTrials.gov 2018
C Inhibition of several strains of influenza virus in vitro and reduction of symptoms by an elderberry extract (Sambucus nigra L.) during an outbreak of influenza B Panama
Rct Journal of alternative and complementary medicine (New York, N.Y.) 1995 PubMed
View all evidence for Elderberry →
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.