California Gold Nutrition Immune 4 supplement bottle
California Gold Nutrition

Immune 4 Review

What We Researched
4 active ingredients analyzed · 6 inactive ingredients decoded · 1 brand certification checked · Last updated: Aug 2026
96
Product Score Excellent
79
Brand Score Fair

Two independent scores — the product and the brand behind it, never blended into one number. See our methodology.

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin C (as Ascorbic Acid) 500 mg 556%
Vitamin D (as Cholecalciferol) 25 mcg 125%
Zinc (as Zinc Picolinate) 10 mg 91%
Selenium (as L-Selenomethionine) 50 mcg 91%
Bioavailability Very Good

Absorption Rating

  • Vitamin C (as Ascorbic Acid) Fair
  • Vitamin D (as Cholecalciferol) Good
  • Zinc (as Zinc Picolinate) Good
  • Selenium (as L-Selenomethionine) Good
Other Ingredients Excellent

Fillers & Additives

  • Modified Cellulose
  • Calcium Carbonate
  • Rice
  • Rice Extract
  • Gum Arabic
  • Sunflower Oil
Efficacy Excellent

Dosage Analysis

  • Vitamin C (as Ascorbic Acid) 500 mg Effective
  • Vitamin D (as Cholecalciferol) 25 mcg Effective
  • Zinc (as Zinc Picolinate) 10 mg Effective
  • Selenium (as L-Selenomethionine) 50 mcg Effective

Supplement Facts

Ingredient Amount % Daily Value
Vitamin C (as Ascorbic Acid) 500 mg 556%
Vitamin D (as Cholecalciferol) 25 mcg 125%
Zinc (as Zinc Picolinate) 10 mg 91%
Selenium (as L-Selenomethionine) 50 mcg 91%

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Modified Cellulose Safe

Creates vegetarian capsule shells with controlled dissolution.

Calcium Carbonate Safe

Acts as a filler and provides supplemental calcium.

Rice Unknown
Rice Extract Safe

It is used as a filler or to provide specific rice-derived compounds.

Gum Arabic Safe

It is used as a thickener, binder, or emulsifier.

Sunflower Oil Safe

Helps dissolve and absorb fat-soluble vitamins.

Brand Trust Report
California Gold Nutrition

Founded 2013 · Irvine, California, United States · 492 products · californiagoldnutrition.com/

Certifications

1 certification
USDA Organic Verified

Transparency

6 claims
Third Party Testing Claim — Verified Source
Coa Availability — Verified Source
Testing Lab Disclosure — Claimed
In House Testing — Verified Source
Contains Proprietary Blend — True

Violation History

6 incidents
Recall California Gold Nutrition Daily Prenatal Multi, Ultamins Women's Multivitamin, and Ultamins Women's 50+ Multivitamin2025-06-26Source
Fda Warning Public health warning against the purchase and consumption of unregistered food supplement: CALIFORNIA GOLD NUTRITION Baby Liquid Vitamin D3.2025-01-10Source
Fda Warning Public health warning against the purchase and consumption of unregistered food product: CALIFORNIA GOLD NUTRITION Stabilized R-Lipolic Acid.2024-04-12Source
Fda Warning Public health warning against the purchase and consumption of unregistered food product: CALIFORNIA GOLD NUTRITION Silymarin Complex.2024-04-12Source
Fda Warning Public health warning against the purchase and consumption of unregistered food supplement: CALIFORNIA GOLD NUTRITION PQQ 20mg.2024-02-01Source
Fda Warning Public health warning against the purchase and consumption of unregistered food supplement: CALIFORNIA GOLD NUTRITION DAIRY ENZYMES.2019-09-26Source
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Frequently Asked Questions
Is California Gold Nutrition Immune 4 a good supplement?

California Gold Nutrition Immune 4 received a product quality score of 96/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 4 active ingredients with 180 servings per container. Of the 6 inactive ingredients, 5 are rated safe and 0 are flagged for review. The manufacturer, California Gold Nutrition, holds a brand trust score of 79/100 with 1 verified certifications including USDA Organic.

What are the ingredients in California Gold Nutrition Immune 4?

California Gold Nutrition Immune 4 contains 4 active ingredients: Vitamin C (as Ascorbic Acid) (500 mg), Vitamin D (as Cholecalciferol) (25 mcg), Zinc (as Zinc Picolinate) (10 mg), Selenium (as L-Selenomethionine) (50 mcg). Notable high-dose ingredients include Vitamin C at 556% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is California Gold Nutrition Immune 4 safe to take?

California Gold Nutrition Immune 4 has been analyzed for ingredient safety across all its components. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is California Gold Nutrition a trustworthy supplement brand?

California Gold Nutrition receives a brand trust score of 79/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 2013 and headquartered in Irvine, California, United States, the company offers 492 products in their lineup. They hold 1 verified certifications including USDA Organic. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: California Gold Nutrition has 6 historical regulatory incidents on record, which are factored into the trust score.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records — read our methodology. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.