California Gold Nutrition Ergothioneine, 25 mg, 90 Veggie Capsules supplement bottle
California Gold Nutrition

Ergothioneine, 25 mg, 90 Veggie Capsules

What We Researched
1 active ingredient analyzed · 1 retailer compared · Last updated: Mar 2026
87
Product Score Good
79
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
L-Ergothioneine 25 mg †
Bioavailability Excellent

Absorption Rating

  • L-Ergothioneine Good
Other Ingredients Fair

Fillers & Additives

No inactive ingredient data available.

Efficacy Excellent

Dosage Analysis

  • L-Ergothioneine 25 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
L-Ergothioneine 25 mg †

Price Comparison

iHerb $29.95 $0.33 / serving
Best Price

Price History

Tracked across major retailers. Updated periodically.

$32$31$30$29$28 Mar 12 $29.95
iHerb

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Brand Trust Report
California Gold Nutrition

Founded 2013 · Irvine, California, United States · 406 products · californiagoldnutrition.com/

Transparency

5 claims
Third Party Testing Claim — Verified Source
Coa Availability — Verified Source
Testing Lab Disclosure — Claimed
In House Testing — Verified Source

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 Ergothioneine, 25 mg a good supplement?

California Gold Nutrition Ergothioneine, 25 mg, 90 Veggie Capsules received a product quality score of 87/100 in GoodSupp's independent analysis, indicating strong overall quality. The product contains 1 active ingredients with 90 servings per container. The manufacturer, California Gold Nutrition, holds a brand trust score of 79/100.

What are the ingredients in California Gold Nutrition Ergothioneine, 25 mg?

California Gold Nutrition Ergothioneine, 25 mg contains 1 active ingredients: L-Ergothioneine (25 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is California Gold Nutrition Ergothioneine, 25 mg safe to take?

California Gold Nutrition Ergothioneine, 25 mg, 90 Veggie Capsules 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 406 products in their lineup. 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. 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.