10 Best Glutathione Supplements of 2026 (Tested and Ranked)

Glutathione is an antioxidant the body makes from the amino acids cysteine, glycine, and glutamate. Supplements approach it in two ways: provide glutathione directly or supply a precursor such as N-acetyl-L-cysteine (NAC) that the body can use to make more.

Neither approach is a shortcut to “detox” or a treatment for disease. The useful differences are form, dose, delivery system, quality control, capsule count, and cost. Liposomal and sustained-release products try to address the variable absorption of ordinary oral glutathione, while NAC has a larger clinical research history as a glutathione precursor.

The 10 Best Glutathione Supplements

How We Chose

FitnessVolt editor Tom Miller compared the current labels, glutathione form, dose, delivery system, supporting ingredients, capsule burden, allergen information, manufacturer quality signals, and cost per serving. Direct glutathione and NAC were scored in separate roles because they are not interchangeable ingredients.

Products lost ground for proprietary delivery claims without a clear dose, inflated “detox” promises, confusing blend math, or prices that were difficult to justify against better-documented alternatives.

1. Codeage Liposomal Glutathione: Best Overall

Codeage Liposomal Glutathione

Best Overall

★★★★★ 4.8/5

$39.90

Pros

• 500mg reduced glutathione per serving
• Liposomal phospholipid complex
• Vegan and non-GMO positioning
• Clear capsule format

Cons

• Costs more than standard reduced glutathione
• Capsules may feel large
• Absorption varies between individuals

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Codeage offers the best overall balance of dose, delivery format, label clarity, and price. Each serving combines 500 milligrams of reduced glutathione with a phospholipid complex intended to support absorption.

The capsules are simple to work into a daily routine, although their size and the premium over ordinary reduced glutathione are noticeable. Codeage also led the disclosed recent Amazon orders among FitnessVolt readers in this category, a useful real-world signal alongside the formula review.

2. Nutricost Liposomal Glutathione: Best Value Liposomal

Nutricost Liposomal Glutathione 720mg

Best Value Liposomal

★★★★★ 4.7/5

$28.95

Pros

• 720mg listed serving
• Liposomal format
• Competitive price
• 60-capsule bottle

Cons

• Newer listing
• Confirm serving size on current bottle
• Less long-term buyer history

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Nutricost is the most attractive liposomal value at the current price. The 720-milligram listed serving is easy to compare, and the 60-capsule bottle avoids the cost of the practitioner-focused products.

Because this is a newer listing, check the delivered label for the number of capsules per serving and the exact phospholipid system. It is the price-conscious direct-glutathione pick, not a reason to chase the highest milligram number.

3. NOW Foods Glutathione 500mg: Best Budget Direct Formula

NOW Foods Glutathione 500mg with Milk Thistle and Alpha Lipoic Acid

Best Budget Direct Formula

★★★★★ 4.6/5

$22.99

Pros

• 500mg reduced glutathione
• Includes milk thistle and alpha-lipoic acid
• Established value brand
• Vegan and non-GMO positioning

Cons

• Not liposomal
• Supporting ingredients may be unnecessary
• Standard capsule absorption is variable

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NOW pairs 500 milligrams of reduced glutathione with milk thistle and alpha-lipoic acid at a price below most liposomal products. It is the strongest budget choice for shoppers who still want direct glutathione.

The supporting ingredients broaden the formula, but they also make it less suitable for someone who wants a single active ingredient. The main limitation is the ordinary capsule delivery rather than a liposomal or sustained-release system.

4. Jarrow Formulas Reduced Glutathione 500mg: Best Simple Reduced Form

Jarrow Formulas Glutathione Reduced 500mg

Best Simple Reduced Form

★★★★★ 4.6/5

$34.99

Pros

• 500mg reduced glutathione
• Minimal formula
• 120-capsule bottle
• Vegan and gluten-free positioning

Cons

• Not liposomal
• Large bottle is an upfront commitment
• Absorption may be less predictable

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Jarrow is the best choice for people who want reduced glutathione without a long list of cofactors. The 500-milligram dose and large bottle make the serving easy to understand.

This is not the cheapest bottle, but the 120-count format improves the long-term value. Its main tradeoff is the same as other standard oral glutathione capsules: uptake can be less predictable than with enhanced-delivery products.

5. Thorne Glutathione-SR: Best Sustained Release

Thorne Glutathione-SR Sustained-Release

Best Sustained Release

★★★★★ 4.6/5

$54.00

Pros

• Sustained-release tablet
• Established quality-control program
• 175mg per capsule
• Practitioner-focused brand

Cons

• High price per milligram
• Twice-daily label directions
• Lower dose than 500mg competitors

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Thorne uses a sustained-release matrix rather than a liposomal carrier. The design is intended to extend the release window, which offers a different solution to the oral-delivery problem.

This is a quality-first pick, not a value pick. The 175-milligram capsule dose is lower than the large numbers on competing labels, and the cost is high. It makes the most sense for people who already trust Thorne or were directed toward a sustained-release formula.

6. Pure Encapsulations Liposomal Glutathione: Best Practitioner Brand

Pure Encapsulations Liposomal Glutathione Softgels

Best Practitioner Brand

★★★★★ 4.5/5

Pros

• Liposomal softgel format
• Hypoallergenic brand positioning
• Minimal unnecessary additives
• Strong practitioner recognition

Cons

• Very expensive
• Softgels may not suit every diet
• Package sizes and price vary

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Pure Encapsulations is the premium practitioner-facing option. Its softgel delivery and restrained excipient approach will appeal to people who already use the brand or have specific ingredient sensitivities.

Price is the clear obstacle, and current package options vary enough that a fixed per-serving figure can become stale quickly. Codeage or Nutricost will make more sense for most self-directed shoppers.

7. Double Wood Liposomal Glutathione: Best Simple Liposomal Alternative

Double Wood Liposomal Glutathione 500mg

Best Simple Liposomal Alternative

★★★★★ 4.5/5

$29.95

Pros

• 500mg listed dose
• Liposomal delivery
• 60-capsule bottle
• Competitive mid-range price

Cons

• Listing provides fewer formula details than top pick
• Confirm serving size
• No need to choose it solely for a higher absorption claim

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Double Wood gives shoppers another reasonably priced 500-milligram liposomal capsule. The formula occupies the useful middle ground between budget standard capsules and expensive practitioner products.

It ranks below Codeage because the top pick has stronger overall label and market evidence. Choose Double Wood when the current price is better or you already prefer the brand.

8. Life Extension NAC 600mg: Best NAC Precursor

Life Extension N-Acetyl-L-Cysteine 600mg

Best NAC Precursor

★★★★★ 4.7/5

$14.00

Pros

• 600mg NAC per capsule
• Long-established formula
• Low cost per serving
• Simple route to cysteine intake

Cons

• Not direct glutathione
• Sulfur odor is normal
• Can interact with medication and is not right for everyone

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NAC supplies cysteine, a building block the body uses to synthesize glutathione. Life Extension’s 600-milligram capsule is a simple, inexpensive way to choose that precursor route.

Do not compare NAC milligrams directly with glutathione milligrams. They are different compounds with different uses. NAC also has medication interactions and medical applications, so people under clinical care should discuss it with their clinician.

9. Jarrow N-A-C Sustain 600mg: Best Sustained-Release NAC

Jarrow Formulas N-A-C Sustain 600mg

Best Sustained-Release NAC

★★★★★ 4.6/5

$19.99

Pros

• 600mg NAC
• Immediate- and sustained-release layers
• Once-daily convenience
• Vegan and gluten-free positioning

Cons

• Tablet is larger than many capsules
• Costs more than basic NAC
• Not direct glutathione

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Jarrow’s bilayer tablet combines an immediate-release portion with a sustained-release matrix. That makes it the best NAC option for people who prefer one daily tablet and want a slower release profile.

The tablet is more substantial than a standard capsule and carries a small price premium. Basic NAC remains the better value if you do not care about the delivery system.

10. Nutricost NAC 600mg: Best Bulk NAC Value

Nutricost N-Acetyl L-Cysteine NAC 600mg

Best Bulk NAC Value

★★★★★ 4.5/5

$17.95

Pros

• 180 capsules
• 600mg per capsule
• Low cost per serving
• Simple formula

Cons

• Large bottle is a commitment
• No sustained-release system
• Not direct glutathione

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Nutricost offers the lowest-friction bulk purchase for regular NAC users. One 180-count bottle lasts six months at one capsule daily, and the 600-milligram dose is straightforward.

People trying NAC for the first time may prefer a smaller bottle. The sulfur smell associated with NAC is normal, but damaged seals, moisture, or unusual discoloration still warrant returning the product.

Direct Glutathione vs. NAC

Direct supplements provide glutathione itself. Liposomal or sustained-release formats attempt to improve the amount that reaches circulation, but results can vary. NAC supplies cysteine so the body can make glutathione; it is not a liposomal glutathione substitute and may be chosen for different reasons.

There is no universal winner. The sensible choice depends on the reason for use, tolerance, medication history, and clinician guidance.

What to Look For

• Clear form: The label should distinguish reduced, liposomal, sustained-release, or precursor products.
• Transparent dose: Avoid proprietary blends that hide the amount of glutathione or NAC.
• Realistic claims: Supplements should not promise to cure disease, erase skin pigmentation, or replace medical treatment.
• Quality controls: Favor brands that disclose manufacturing standards and independent testing practices.

Safety

Glutathione supplements can cause digestive symptoms in some users. NAC can interact with nitroglycerin, blood-thinning medicines, and other treatments, and it may not be appropriate around surgery or for certain respiratory conditions without medical guidance. People who are pregnant or breastfeeding, have a chronic condition, or take prescription medication should speak with a qualified clinician before use.

Bottom Line

Codeage Liposomal Glutathione is the best overall direct formula. Nutricost Liposomal offers the strongest current value, NOW Foods is the budget direct-glutathione pick, and Life Extension NAC is the best precursor option.

Sources

1. Oral glutathione supplementation and body stores in healthy adults
2. Glutathione: overview of its protective roles, measurement, and supplementation
3. N-Acetylcysteine clinical overview and safety considerations