California Gold Nutrition Fungiology, MushRex Plus, Full-Spectrum Ten Mushroom Complex with Agaricus, Chaga, Cordyceps, and Lion's Mane, 120 Plantcaps supplement bottle
California Gold Nutrition

Fungiology, MushRex Plus, Full-Spectrum Ten Mushroom Complex with Agaricus, Chaga, Cordyceps, and Lion's Mane, 120 Plantcaps

What We Researched
2 active ingredients analyzed · 1 inactive ingredient decoded · 2 retailers compared · Last updated: Mar 2026
78
Product Score Fair
79
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Organic Mushroom Powder Blend(Agaricus [Agaricus blazei), Chaga (Inonotus obliquus], Cordyceps [Cordyceps sinensis/militaris], Lion's Mane [Hericium erinaceus), Maitake [Grifola frondosa], Oyster Mushroom [Pleurotus ostreatus], Reishi [Ganoderma lucidum], Sanghwang [Phellinus linteus], Shiitake [Lentinula edodes], Turkey Tail [Coriolus versicolor])(mycelium, primordia, fruiting bodies and extracellular compounds) 250 mg †
Organic Mushroom Extract Blend (Immune Assist™)(Agaricus [Agaricus blazei), Reishi [Ganoderma lucidum], Maitake [Grifola frondosa], Shiitake [Lentinula edodes], Turkey Tail [Coriolus versicolor], Cordyceps [Cordyceps sinensis] (mycelium primordia, fruiting bodies and extracellular compounds) 200 mg †
Bioavailability Very Good

Absorption Rating

  • Organic Mushroom Powder Blend(Agaricus [Agaricus blazei), Chaga (Inonotus obliquus], Cordyceps [Cordyceps sinensis/militaris], Lion's Mane [Hericium erinaceus), Maitake [Grifola frondosa], Oyster Mushroom [Pleurotus ostreatus], Reishi [Ganoderma lucidum], Sanghwang [Phellinus linteus], Shiitake [Lentinula edodes], Turkey Tail [Coriolus versicolor])(mycelium, primordia, fruiting bodies and extracellular compounds) Fair
  • Organic Mushroom Extract Blend (Immune Assist™)(Agaricus [Agaricus blazei), Reishi [Ganoderma lucidum], Maitake [Grifola frondosa], Shiitake [Lentinula edodes], Turkey Tail [Coriolus versicolor], Cordyceps [Cordyceps sinensis] (mycelium primordia, fruiting bodies and extracellular compounds) Good
Other Ingredients Excellent

Fillers & Additives

  • Modified cellulose (hypromellose veggie capsule) and organic white milo (growing substrate)
Efficacy Poor

Dosage Analysis

  • Organic Mushroom Powder Blend(Agaricus [Agaricus blazei), Chaga (Inonotus obliquus], Cordyceps [Cordyceps sinensis/militaris], Lion's Mane [Hericium erinaceus), Maitake [Grifola frondosa], Oyster Mushroom [Pleurotus ostreatus], Reishi [Ganoderma lucidum], Sanghwang [Phellinus linteus], Shiitake [Lentinula edodes], Turkey Tail [Coriolus versicolor])(mycelium, primordia, fruiting bodies and extracellular compounds) 250 mg High
  • Organic Mushroom Extract Blend (Immune Assist™)(Agaricus [Agaricus blazei), Reishi [Ganoderma lucidum], Maitake [Grifola frondosa], Shiitake [Lentinula edodes], Turkey Tail [Coriolus versicolor], Cordyceps [Cordyceps sinensis] (mycelium primordia, fruiting bodies and extracellular compounds) 200 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Organic Mushroom Powder Blend(Agaricus [Agaricus blazei), Chaga (Inonotus obliquus], Cordyceps [Cordyceps sinensis/militaris], Lion's Mane [Hericium erinaceus), Maitake [Grifola frondosa], Oyster Mushroom [Pleurotus ostreatus], Reishi [Ganoderma lucidum], Sanghwang [Phellinus linteus], Shiitake [Lentinula edodes], Turkey Tail [Coriolus versicolor])(mycelium, primordia, fruiting bodies and extracellular compounds) 250 mg †
Organic Mushroom Extract Blend (Immune Assist™)(Agaricus [Agaricus blazei), Reishi [Ganoderma lucidum], Maitake [Grifola frondosa], Shiitake [Lentinula edodes], Turkey Tail [Coriolus versicolor], Cordyceps [Cordyceps sinensis] (mycelium primordia, fruiting bodies and extracellular compounds) 200 mg †

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Modified cellulose (hypromellose veggie capsule) and organic white milo (growing substrate) Unknown

Price Comparison

iHerb $19.51 $0.16 / serving
Best Price

Price History

Tracked across major retailers. Updated periodically.

$22$21$20$19$18 Mar 12 $19.51
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 Fungiology, MushRex Plus a good supplement?

California Gold Nutrition Fungiology, MushRex Plus, Full-Spectrum Ten Mushroom Complex with Agaricus, Chaga, Cordyceps, and Lion's Mane, 120 Plantcaps received a product quality score of 78/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 2 active ingredients with 120 servings per container. Of the 1 inactive ingredients, 0 are rated safe and 0 are flagged for review. The manufacturer, California Gold Nutrition, holds a brand trust score of 79/100.

What are the ingredients in California Gold Nutrition Fungiology, MushRex Plus?

California Gold Nutrition Fungiology, MushRex Plus contains 2 active ingredients: Organic Mushroom Powder Blend(Agaricus [Agaricus blazei), Chaga (Inonotus obliquus], Cordyceps [Cordyceps sinensis/militaris], Lion's Mane [Hericium erinaceus), Maitake [Grifola frondosa], Oyster Mushroom [Pleurotus ostreatus], Reishi [Ganoderma lucidum], Sanghwang [Phellinus linteus], Shiitake [Lentinula edodes], Turkey Tail [Coriolus versicolor])(mycelium, primordia, fruiting bodies and extracellular compounds) (250 mg), Organic Mushroom Extract Blend (Immune Assist™)(Agaricus [Agaricus blazei), Reishi [Ganoderma lucidum], Maitake [Grifola frondosa], Shiitake [Lentinula edodes], Turkey Tail [Coriolus versicolor], Cordyceps [Cordyceps sinensis] (mycelium primordia, fruiting bodies and extracellular compounds) (200 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is California Gold Nutrition Fungiology, MushRex Plus safe to take?

California Gold Nutrition Fungiology, MushRex Plus, Full-Spectrum Ten Mushroom Complex with Agaricus, Chaga, Cordyceps, and Lion's Mane, 120 Plantcaps 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.