🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 64% of ingredients have research evidence
A Label Compliance Grade

Product Label

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Label Data

4 Capsule(s) Serving Size
30 Servings
Other Combinations Product Type
64% Evidence Coverage

Supplement Facts — Evidence Check

Vitamin C
200 mg (222% DV)
25 mcg (125% DV)
✅ 1.7× RDA — within safe limits 📚 604 studies (Tier A: 16, B: 251)
RDA 0.015mg This product: 0.025mg UL 0.1mg
25 mg (227% DV)
✅ 2.3× RDA — within safe limits 📚 258 studies (Tier A: 6, B: 134)
RDA 11mg This product: 25mg UL 40mg
📊 Market median: 500.0mg (283 products) 📚 173 studies (Tier A: 0, B: 62)
This product: 500mg
📊 Market median: 375.0mg (171 products) 📚 30 studies (Tier A: 1, B: 14)
This product: 300mg
Nettle Root Extract
300 mg
📊 Market median: 600.0mg (7 products) 📚 39 studies (Tier A: 2, B: 13)
This product: 250mg
📊 Market median: 500.0mg (283 products) 📚 173 studies (Tier A: 0, B: 62)
This product: 222mg
200 mg
📊 Market median: 200.0mg (136 products) 📚 3 studies — no high-quality reviews
This product: 200mg
📊 Market median: 100.0mg (284 products) 📚 10 studies (Tier A: 0, B: 4)
This product: 20mg
15 mg
📊 Market median: 496.0mg (192 products) 📚 20 studies — no high-quality reviews
This product: 15mg

Other Ingredients

Hydroxypropyl Methylcellulose Magnesium Stearate Silicon Dioxide

Label Claims — Verification

Nutrient
All Other
Structure/Function
All Other (99% of products) Structure/Function (83% of products) Nutrient (54% of products)

Target Groups

Vegetarian Adult (18 - 50 Years) Gluten Free Dairy Free

Product Information

📋 Directions for Use

Directions: Take four capsules once per day or as directed by your healthcare practitioner.

⚠️ Warnings & Precautions

Caution: Keep out of reach of children.

🧪 Formulation Notes

Seasonal Shield is an advanced, broad-spectrum nutritional formula providing comprehensive support for seasonal environmental challenges.

The select nutrients in this formula - vitamin C, vitamin D3, and zinc - have been chosen for their synergistic ability to support the body's immune response. Key ingredients in Season Shield include quercetin, bromelain and nettle extract, which have been found to help promote healthy mucus viscosity and provide histamine support. Additionally, NAC is a unique form of the amino acid L-cysteine which has been found to support healthy tissue levels of glutathione (GSH).

Does not contain: milk, eggs, fish, shellfish, tree nuts, peanuts, wheat, soy. Sourced from non-GMO ingredients. Gluten-free

Vegetarian

Professional quality formulas Support for seasonal challenges Advanced histamine support

Additional Information

Storage: Keep tightly closed in a cool, dry place.

cGMP Third-Party Certified Facility

Product Details

UPC / SKU 8 12527 01677 4
DSLD Entry Date 2024-12-21
Product Type Other Combinations
Form Capsule
Brand NuMedica
DSLD ID 323684
Data Updated 2026-04-11

Research Evidence

371 Research Sources
54 Avg Quality Score
148 Meta Analysis
82 Systematic Review
71 Rct
62 Clinical Trial
2 Regulatory Source
1 Cochrane Review
1 Narrative Review
1 Other
1 Openfda Safety
A Vitamin C supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015
A Vitamin C supplementation for the primary prevention of cardiovascular disease
Systematic Review The Cochrane database of systematic reviews 2017
A Vitamin C for preventing and treating the common cold
Meta Analysis The Cochrane database of systematic reviews 2013
A Vitamin C for preventing and treating pneumonia
Meta Analysis The Cochrane database of systematic reviews 2013
A Vitamin E supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015
A Vitamin C supplementation for prevention and treatment of pneumonia
Meta Analysis The Cochrane database of systematic reviews 2020
A Vitamin C supplementation for prevention and treatment of pneumonia
Systematic Review The Cochrane database of systematic reviews 2021
A Nutritional interventions for preventing and treating pressure ulcers
Meta Analysis The Cochrane database of systematic reviews 2024
A Does Vitamin C Supplementation Provide a Protective Effect in Periodontal Health? A Systematic Review and Meta-Analysis
Meta Analysis International journal of molecular sciences 2024
A Circulating vitamin C concentration and risk of cancers: a Mendelian randomization study
Meta Analysis BMC medicine 2021
View all evidence for Vitamin C →

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