NOW Foods
Glutathione 500 mg
89/100
SUPPIE SCORE
85/100
EFFICACY
High
SAFETY
90/100
CLEANLINESS
What Does Glutathione 500 mg Do?
NOW Foods Glutathione 500 mg offers strong antioxidant and detox benefits with research-backed doses of reduced glutathione, milk thistle, and ALA. Formulation is high-quality and safe for most adults, with no major concerns.
What are the main benefits of reduced glutathione for detoxification?
How does milk thistle extract support liver health in this supplement?
Is alpha lipoic acid effective for antioxidant protection at 50 mg?
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What Are the Benefits of Glutathione 500 mg?
Based on proven scientific research
Detoxification SupportStrong
Antioxidant ProtectionVery strong
Liver HealthStrong
Immune FunctionModerate
Good For:
What Are the Side Effects of NOW Foods Glutathione 500 mg?
Always consult your health practitioner if in doubt.
RiskLow Risk
Overview
•Glutathione at 500 mg is generally safe for healthy adults, with rare side effects like abdominal discomfort; supported by NIH data on low toxicity.
•Milk thistle extract (100 mg, standardized to 80% silymarin) poses low risk but may cause mild GI upset in sensitive individuals; no major interactions in this dose per Examine.com.
•Alpha lipoic acid at 50 mg is well below safe limits (up to 600 mg/day), with minimal risk of skin rash or hypoglycemia; safe for short-term use per Mayo Clinic.
•No contraindications for pregnancy/breastfeeding at these doses, but consult physician; low interaction potential with common meds like blood thinners.
•Free of major allergens (wheat, gluten, soy, milk, egg, fish, shellfish, tree nuts, sesame); produced in GMP facility minimizing contamination risks.
•Long-term use safe at recommended doses, but monitor for rare allergic reactions; no dosage exceeds established ULs from EFSA/NIH guidelines.
Potential Side Effects
Negative Interactions
Allergens
None declared
Inactive Ingredients
Hypromellose (cellulose capsule)
Low RiskMicrocrystalline cellulose
Low RiskMagnesium stearate (vegetable source)
Low RiskSilicon dioxide
Low RiskWhat Are the Ingredients in NOW Foods Glutathione 500 mg?
Glutathione (Reduced Form)
500 mg
Milk Thistle Extract (Silybum marianum) (Fruit/Seed) (Standardized to 80 mg Silymarin Flavonoids)
100 mg
Alpha Lipoic Acid
50 mg
Hypromellose (cellulose capsule)
Microcrystalline Cellulose
Magnesium Stearate (vegetable source)
Silicon Dioxide
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Dosage & Bioavailability
How the active doses and forms in Glutathione 500 mg compare to the research.
•Glutathione (Reduced Form) — 500 mg per serving; within the 300-500 mg/day used in studies.
•Milk Thistle Extract (Silybum marianum) (Fruit/Seed) (Standardized to 80 mg Silymarin Flavonoids) — 100 mg per serving; studies use 140-2,100 mg/day. Extract strength is not stated either.
•Alpha Lipoic Acid — 50 mg per serving; studies use 600-1,663 mg/day.
Sources & References
Frequently Asked Questions
Common questions about NOW Foods Glutathione 500 mg