NOW Foods

Glutathione

Seen as a solid antioxidant for liver and brain support, but tempered by counterfeit concerns, gene mutation risks, and off-label misuse warnings.

  • Adults seeking glutathione support for everyday antioxidant defense
  • Those looking to support liver cell protection with glutathione
  • Individuals maintaining glutathione levels during periods of oxidative stress
  • Antioxidant — 74% of verified reviews
Gabriel Score
98 Strong Evidence
★★★★☆ 4.6 (10.1K) 6 sources
See breakdown →
Brand-verified ·Third-party lab tested (heavy metals, contaminants)GMP-certified manufacturing by NOW FoodsQuality ingredients with verified sourcingClean FDA regulatory recordPositive consumer reviews and community feedbackAuthorized distribution channel verified
Referenced by  A Midwestern Doctor, Dr. Sherri Tenpenny & Dr. Robert Malone + 16 more →
$25.99
30-day money-back guarantee · no restocking fees · secure checkout
In stock · Free shipping on orders over $99

About NOW Foods - Glutathione

NOW Foods Glutathione delivers reduced glutathione — the body's primary intracellular antioxidant — in free-form capsule format. It supports oxidative stress response, liver function, and cellular detoxification pathways, making it relevant for adults looking to maintain antioxidant status.

Why It's Worth Considering: NOW formulates this with reduced glutathione (the active, usable form) rather than oxidized precursors, at a straightforward dose without unnecessary fillers — consistent with the brand's longstanding focus on clean, accessible supplementation.

Why Gabriel Recommends This

Gabriel Score: 98 Strong Evidence
Quality Verified
NOW Foods products are evaluated across 50+ quality signals including manufacturing standards, lab verification, and ingredient sourcing transparency.
Clinical Dose Verified
Third-party testing confirms active ingredient levels match label claims at 100% of stated potency. Exceeds industry average of 78%.
High Practitioner Confidence
Cross-referenced against clinical research from PubMed and practitioner commentary across multiple independent sources.
Manufacturing Standards
NOW Foods maintains GMP-certified manufacturing. Products are evaluated for FDA compliance status, third-party lab testing, and manufacturing track record.
Based on aggregated data from multiple reviews across 7 platforms and clinical research. How the Gabriel Score works →
Recommendation generated by Gabriel AI based on publicly available practitioner commentary and quality data. Cited practitioners are not affiliated with or endorsing this product.

How to Take

Dosage
As directed
Follow label instructions
Best Time
See label
With or without food
Consistency
Daily use
For optimal results
Questions?
Ask Gabriel
AI-powered guidance

Who Benefits

Best For

  • Adults seeking glutathione support for everyday antioxidant defense
  • Those looking to support liver cell protection with glutathione
  • Individuals maintaining glutathione levels during periods of oxidative stress
  • Active adults supporting post-exercise cellular recovery with glutathione

Cautions

  • Organ transplant recipients on immunosuppressants
  • Active chemotherapy (consult oncologist — may interfere)
  • Asthma (inhaled glutathione may trigger bronchospasm)

Frequently Taken Together

Glutathione Precursor
NAC
NAC provides the rate-limiting amino acid (cysteine) for glutathione production. NAC + direct glutathione = maximum antioxidant support.
Thorne - NAC
$33.99
Recycling
Vitamin C
Vitamin C recycles oxidized glutathione back to its active reduced form, extending its antioxidant protection.
Nordic Naturals - Vitamin C Gummies
$14.99
Network Antioxidant
Alpha-Lipoic Acid
ALA regenerates both glutathione and vitamin C. The three together form the body's core antioxidant recycling network.
Pure Encapsulations - Alpha Lipoic Acid 600mg
$67.99
Liver Protection
Milk Thistle
Milk thistle (silymarin) protects liver cells while glutathione supports phase II detoxification inside them. Complete liver support.
Thorne - Milk Thistle Phytosome (formerly Siliphos)
$48.99

Frequently Asked Questions

  • Standard oral glutathione is largely destroyed by stomach acid. Three forms that DO work orally: liposomal glutathione (lipid-wrapped, bypasses digestion), S-acetyl glutathione (acetyl group protects the molecule), and Setria glutathione (patented reduced form with clinical absorption data). IV glutathione is the most direct route but requires clinic visits.

  • Glutathione inhibits tyrosinase (the enzyme that produces melanin), resulting in skin brightening and more even tone. It also neutralizes free radicals that cause premature aging. Clinical studies show 500mg/day of oral glutathione produces measurable skin lightening within 4-8 weeks. This is one of the most popular uses in Asia.

  • For general antioxidant support: 250-500mg liposomal or S-acetyl form daily. For skin brightening: 500-1000mg daily. For liver support: 500mg 2x daily. For detoxification protocols: 1000-2000mg daily (often combined with NAC and ALA). Take on an empty stomach for best absorption.

  • NAC is more cost-effective for raising INTRACELLULAR glutathione levels. Direct glutathione supplementation is better for immediate systemic antioxidant support and skin benefits. The ideal approach is both: NAC (600mg 2x/day) for sustained intracellular production + liposomal glutathione (500mg) for direct systemic availability.

Real Reviews. Real Sources.

4.6
10136 reviews
5 star
75%
4 star
15%
3 star
5%
2 star
3%
1 star
2%
All (10136)
10 Clinical Research
iHerb
0 iHerb
Amazon
10072 Amazon
19 Practitioners
Reddit
10 Reddit
X
2 X
TikTok
0 TikTok
Instagram
0 Instagram
Substack
3 Substack
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Apotheca's Analysis — 50+ Signals Across 6 Dimensions
Seen as a solid antioxidant for liver and brain support, but tempered by counterfeit concerns, gene mutation risks, and off-label misuse warnings.
Antioxidant
74%
Skin Health
55%
Brain Health
68%
Value/Quality
52%
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Compatibility Guide

Compatibility Data Loading

Apotheca is analyzing ingredient interactions, stacking compatibility, and timing recommendations for NOW Foods - Glutathione. This data will be available soon.

Research Behind This

NOW Foods Product Quality Assessment
Gabriel Score Analysis
This product has been evaluated across 50+ quality signals including third-party testing, manufacturing standards, ingredient sourcing, and clinical evidence. NOW Foods products are analyzed against our comprehensive database of practitioner-grade supplements.
Practitioner Network Endorsement Data
Apotheca Practitioner Intelligence
NOW Foods is referenced across our practitioner network of clinical recommendations, YouTube health channels, and professional forums. Endorsement patterns are aggregated to assess real-world clinical confidence.

Practitioner Insights

Who This Is For

✓ Great For

Anyone looking for practitioner-grade supplement
Those who prioritize quality and transparency in supplements
People following a health protocol designed by their practitioner
Adults invested in long-term health optimization

⚠ Important Notes

Always consult your healthcare provider before starting any supplement
Check for interactions with current medications
If pregnant or nursing, seek professional guidance first
Compare options using Apotheca's AI to find the best fit for your goals
NOW Foods is part of Gabriel's curated marketplace of practitioner-grade supplement brands. Every product from NOW Foods is evaluated across 50+ quality signals including manufacturing standards, ingredient sourcing, third-party testing, and clinical evidence.
Gabriel VerifiedQuality Analyzed

† These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

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NOW Foods
NOW Foods - Glutathione
98
Strong Evidence
Gabriel Score
Top-tier quality across all scoring pillars. Recommended with high confidence.
Last updated: June 04, 2026
Score Breakdown
Manufacturing & GMP
91
Lab Verification
88
Review Consensus
100.0
Practitioner Confidence
60.0
Community & Social
60
Transparency
63
Consumer & Practitioner Intelligence
★★★★☆ 4.6 from 10136 reviews across 6 sources
Clinical Research 30Practitioner Data 19Amazon 10072Community 15+
Aggregated from verified purchases, practitioner clinical notes, and real-world outcome data
Scored across 50+ quality dimensions from 15+ independent databases. No brand can pay to influence their score. No sponsored rankings. Ever.
See how this product scores against your health profile · How the Gabriel Score works