Pure Encapsulations

NAC + Glycine powder, 159 g

Pure Encapsulations NAC + Glycine Powder combines N-acetyl-L-cysteine and glycine, two precursors involved in glutathione synthesis, in a powdered, unflavored format designed for flexible dosing.

4.1 across 5 sources

May be a fit for

  • Adults seeking NAC and glycine to support glutathione synthesis
  • Practitioners protocols requiring amino acid precursors for antioxidant pathways
  • Individuals supporting liver detoxification with NAC in powder form
$38.99

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PowderFormat
159 gPack size
The essentials

A closer look.

Pure Encapsulations NAC + Glycine Powder combines N-acetyl-L-cysteine and glycine, two precursors involved in glutathione synthesis, in a powdered, unflavored format designed for flexible dosing. This formulation supports antioxidant activity and may help maintain healthy cellular defense mechanisms, making it well-suited for adults focused on oxidative stress management and recovery support.

Why It's Worth Considering: The powder format allows for precise, adjustable serving sizes and may support faster dissolution compared to capsules, a practical choice for those who prefer to blend supplements into beverages or for practitioners titrating doses for individual clients.

The Apotheca perspective

50+ signals. A clearer standard.

Our curation and trust scoring bring together manufacturing, testing, research, practitioner insight and reviews from across the web.

89OUT OF 100
Manufacturing7878
Lab verification6868
Transparency6868

Our score is an editorial assessment, not a product certification or a guarantee of results.

Inside the formula

Product details

Who it may suit

May be a fit for

  • Adults seeking NAC and glycine to support glutathione synthesis
  • Practitioners protocols requiring amino acid precursors for antioxidant pathways
  • Individuals supporting liver detoxification with NAC in powder form
  • Those with difficulty swallowing capsules needing NAC plus glycine delivery

Considerations

  • Active bleeding or bleeding disorders
  • Taking nitroglycerin (may cause hypotension)
  • Asthma (rare cases of bronchospasm at high doses)
  • Scheduled surgery within 1 week
What to expect over time
Day 1–7

Glutathione Boost

Increased intracellular glutathione production

Week 2–4

Liver Support

Enhanced phase II detoxification

Week 4–8

Respiratory & Mental

Clearer breathing, reduced compulsive symptoms

Month 2–3

Systemic Antioxidant

Reduced oxidative stress markers

Based on clinical NAC research at 600-1800mg/day.

Explore complementary products
From across the web

Real reviews. A wider perspective.

Customer reviews, social conversations and expert insights, with every source in view.

4.1/5Aggregate source rating
Marketplaces & brand websites
Amazon, iHerb and direct brand reviews
Social & community
Reddit, X, Instagram and TikTok
Video & creators
YouTube and creator perspectives

Coverage varies by product and brand.

391 product and brand ratings and mentions across 5 sources.

Explore the source sentiment summary

NAC shows strong support for respiratory, antioxidant, and hormonal benefits, but notable complaints about agitation, anxiety, and glycine sensitivity temper enthusiasm.

This summary includes broader brand discussion. Individual experiences are not evidence of product effectiveness.

Good to know

A few useful answers.

Research & further reading

More category questions

What is NAC used for?

NAC is the precursor to glutathione — the body's master antioxidant. It's used for liver detoxification, respiratory health (thins mucus), mental health (OCD, addiction, depression), immune support, and protecting against oxidative damage from toxins, alcohol, and environmental chemicals. It's also the standard ER treatment for acetaminophen overdose.

How much NAC should I take?

For general antioxidant support: 600mg 1-2x daily. For liver support: 1200-1800mg/day. For respiratory health: 600mg 2-3x daily. For mental health (OCD, addiction): 1200-2400mg/day (clinical study doses). Take on an empty stomach for best absorption.

Is NAC the same as glutathione?

No — NAC is a precursor that your body converts INTO glutathione. NAC has better oral bioavailability than direct glutathione supplements (which are largely destroyed in the stomach). NAC is generally more cost-effective for raising intracellular glutathione levels than oral glutathione, though liposomal glutathione is a viable alternative.

Can I take NAC every day?

Yes. NAC is well-tolerated for long-term daily use at standard doses (600-1800mg). It's water-soluble and excess is excreted. Common side effects are mild GI upset, which resolves by taking with food. There's no evidence of tolerance or need for cycling.

Does NAC help with hangovers?

NAC supports alcohol metabolism by boosting glutathione, which is depleted during alcohol detoxification. However, timing matters: take NAC BEFORE drinking (at least 30 minutes prior), not after. Taking NAC after alcohol may actually increase liver toxicity by interfering with the detoxification sequence.

Supplement information is provided for education and is not a substitute for personalized medical advice. Supplements are not intended to diagnose, treat, cure or prevent disease. Read the current product label before use.

Pure Encapsulations - NAC + Glycine powder, 159 g Pure Encapsulations

Apotheca quality score

89/100

The overall score combines several sources of information. The individual dimensions below show where those signals are stronger or more limited; they are not a simple average of the overall score.

Manufacturing7878
Lab verification6868
Review consensus85.185.1
Practitioner signals57.057.0
Community signals7171
Transparency6868
See available brand signals
✓
Good manufacturing practices verifiedStandard
✓
Quality ingredients with verified sourcingGood
✓
Clean FDA regulatory recordNo issues
✓
Positive consumer reviews and community feedbackGood
✓
Authorized distribution channel verifiedDirect

Our score is an editorial assessment, not a product certification or a guarantee of results.

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