Allergy Research Group Acetyl-Glutathione 300 mg supplement bottle
Allergy Research Group

Acetyl-Glutathione 300 mg Review

What We Researched
1 active ingredient analyzed · 10 inactive ingredients decoded · 2 brand certifications checked · Last updated: Aug 2026
95
Product Score Excellent
83
Brand Score Good

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
S-Acetyl-L-Glutathione 300 mg
Bioavailability Excellent

Absorption Rating

  • S-Acetyl-L-Glutathione Good
Other Ingredients Very Good

Fillers & Additives

  • Polysorbate 80 Medium
  • Potassium Hydroxide Low
  • Microcrystalline Cellulose
  • Vegetable Magnesium Stearate
  • Citric Acid
  • Ascorbic Acid
  • Calcium Phosphate
  • Sodium Starch Glycolate
  • Magnesium Sulfate
  • Silicon Dioxide
Efficacy Excellent

Dosage Analysis

  • S-Acetyl-L-Glutathione 300 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
S-Acetyl-L-Glutathione 300 mg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Polysorbate 80 Caution

Helps mix oil and water-based ingredients.

Potassium Hydroxide Caution

It is used to adjust the pH.

Microcrystalline Cellulose Safe

Adds bulk to small-dose supplements to make tablets/capsules a manageable size.

Vegetable Magnesium Stearate Safe

Prevents ingredients from sticking to equipment. Derived from vegetable sources.

Citric Acid Safe

Adds tartness and acts as a natural preservative. Also aids in ingredient stability.

Ascorbic Acid Safe

Prevents oxidation and provides vitamin C.

Calcium Phosphate Generally_safe

It is used as a filler and anticaking agent in supplements.

Sodium Starch Glycolate Safe

Helps tablets break apart quickly for faster absorption.

Magnesium Sulfate Generally_safe

It is used as a filler or source of magnesium.

Silicon Dioxide Safe

Prevents clumping and ensures consistent dosing.

Brand Trust Report
Allergy Research Group

Founded 1979 · Salt Lake City, Utah, United States · 374 products · allergyresearchgroup.com

Certifications

2 certifications
Consumerlab Verified Source
NSF Certified Verified

Transparency

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

Violation History

1 incident
Prop 65 Lead2011-01-14Source
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Frequently Asked Questions
Is Allergy Research Group Acetyl-Glutathione 300 mg a good supplement?

Allergy Research Group Acetyl-Glutathione 300 mg received a product quality score of 95/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 1 active ingredients with 60 servings per container. Of the 10 inactive ingredients, 6 are rated safe and 2 are flagged for review. The manufacturer, Allergy Research Group, holds a brand trust score of 83/100 with 2 verified certifications including Consumerlab, NSF Certified.

What are the ingredients in Allergy Research Group Acetyl-Glutathione 300 mg?

Allergy Research Group Acetyl-Glutathione 300 mg contains 1 active ingredients: S-Acetyl-L-Glutathione (300 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Allergy Research Group Acetyl-Glutathione 300 mg safe to take?

Allergy Research Group Acetyl-Glutathione 300 mg has been analyzed for ingredient safety across all its components. Of 10 inactive ingredients, 6 are rated safe. 2 ingredients are flagged for review: Polysorbate 80, Potassium Hydroxide. 'Caution' doesn't mean dangerous — it indicates the ingredient has some considerations worth being aware of, such as potential sensitivities or ongoing research. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Allergy Research Group a trustworthy supplement brand?

Allergy Research Group receives a brand trust score of 83/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1979 and headquartered in Salt Lake City, Utah, United States, the company offers 374 products in their lineup. They hold 2 verified certifications including Consumerlab, NSF Certified. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Allergy Research Group has 1 historical regulatory incident 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.