Opti-Zinc 30

product on market Capsule Douglas Laboratories 🟢 Safety: 100/100
Brand: Douglas Laboratories
🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 100% of ingredients have research evidence
A Label Compliance Grade

Product Label

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Label Data

1 Capsule(s) Serving Size
90 Servings
Mineral Product Type
100% Evidence Coverage

Supplement Facts — Evidence Check

30 mg (200% DV)
✅ 2.7× RDA — within safe limits 📚 258 studies (Tier A: 6, B: 134)
RDA 11mg This product: 30mg UL 40mg

Other Ingredients

Cellulose Gelatin Vegetable Stearate

Label Claims — Verification

❓ All Other
All Other (99% of products) Structure/Function (84% of products) Nutrient (48% of products)

Target Groups

Adult (18 - 50 Years) Dairy Free Sugar Free

Product Information

📋 Directions for Use

Suggested Usage: As a dietary supplement, adults take 1 capsule daily or as directed by your healthcare professional.

⚠️ Warnings & Precautions

KEEP OUT OF REACH OF CHILDREN.

Tamper resistant package, do not use if outer seal is missing.

🧪 Formulation Notes

This product contains NO yeast, wheat gluten, soy protein, milk/dairy, corn, sodium, sugar, starch, artificial coloring, preservatives or flavoring.

Additional Information

For optimal storage conditions, store in a cool, dry place. (59(0)-77(0)F/15(0)-25(0)C) (35-65% relative humidity)

Formula #7496

Product Details

UPC / SKU 3 10539 00321 3
DSLD Entry Date 2012-06-01
Product Type Mineral
Form Capsule
Brand Douglas Laboratories
DSLD ID 8835
Data Updated 2026-04-11

Research Evidence

397 Research Sources
55 Avg Quality Score
200 Meta Analysis
68 Rct
58 Systematic Review
53 Clinical Trial
9 Cochrane Review
2 Narrative Review
2 Regulatory Source
1 Observational
1 Other
1 Openfda Safety
A Zinc supplementation for improving pregnancy and infant outcome
Meta Analysis The Cochrane database of systematic reviews 2021
PubMed DOI Cochrane
A Zinc supplementation for preventing mortality, morbidity, and growth failure in children aged 6 months to 12 years
Narrative Review The Cochrane database of systematic reviews 2023
PubMed DOI Cochrane
A Oral zinc for treating diarrhoea in children
Meta Analysis The Cochrane database of systematic reviews 2016
PubMed DOI
A Zinc supplements for preventing otitis media
Meta Analysis The Cochrane database of systematic reviews 2014
PubMed DOI Cochrane
A Zinc for the prevention or treatment of acute viral respiratory tract infections in adults: a rapid systematic review and meta-analysis of randomised controlled trials
Meta Analysis BMJ open 2021
PubMed DOI
A Zinc supplements for preventing otitis media
Meta Analysis The Cochrane database of systematic reviews 2010
PubMed DOI Cochrane
A Zinc supplements for preventing otitis media
Meta Analysis The Cochrane database of systematic reviews 2012
PubMed DOI Cochrane
A Compression bandages or stockings versus no compression for treating venous leg ulcers
Meta Analysis The Cochrane database of systematic reviews 2021
PubMed DOI
A Zinc supplementation for mental and motor development in children
Meta Analysis The Cochrane database of systematic reviews 2012
PubMed DOI Cochrane
A Zinc for the common cold
Meta Analysis The Cochrane database of systematic reviews 2013
PubMed DOI
View all evidence for Zinc →

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