Solgar N-Acetyl Cysteine vs CLAV Milk Thistle & Artichoke

Q: Is Solgar N-Acetyl Cysteine worth the price compared to CLAV Milk Thistle & Artichoke?

Solgar N-Acetyl Cysteine scores 70.0/100 for value, while CLAV Milk Thistle & Artichoke scores 68.0/100. Solgar N-Acetyl Cysteine delivers better value overall.

Side-by-side comparison of scores, ingredients, prices and real customer feedback for Solgar N-Acetyl Cysteine and CLAV Milk Thistle & Artichoke.

Last verified: 01 Mar 2026 · Based on 36 reviews

Back to comparison hub View liver & detox guide

Our Verdict: Solgar N-Acetyl Cysteine or CLAV Milk Thistle & Artichoke?

— AIScored Editorial Team

80.0

Score Summary

Solgar N-Acetyl Cysteine scores 80.0/100 vs CLAV Milk Thistle & Artichoke at 73.0/100. Solgar N-Acetyl Cysteine wins on effectiveness, ingredient quality, value for money. CLAV Milk Thistle & Artichoke is stronger on certifications.

Solgar N-Acetyl Cysteine vs CLAV Milk Thistle & Artichoke: What Does the Data Say?

These two supplements take entirely different approaches to liver support. Solgar's NAC comes in at a specific 600mg free-form dose per capsule — that free-form detail matters for absorption, and 600mg matches the dosage used in clinical research. CLAV's Milk Thistle and Artichoke complex doesn't disclose a per-ingredient dose, which makes it harder to know exactly what you're getting. Solgar scores 80/100 overall against CLAV's 73/100, with the gap widest on effectiveness: 83/100 versus 70/100.

If your main concern is respiratory health or mucus production alongside liver support, Solgar NAC at £25.20 is the more targeted choice — user reports specifically highlight improvements in mucus reduction, and glutathione support is a documented mechanism in the data. CLAV suits someone who wants a gentler, digestive-focused liver supplement with certified organic EU-sourced ingredients and clean manufacturing credentials. At £20.90 it's the cheaper option, though its value score of 68/100 trails Solgar's 70/100 even at the lower price.

Practically speaking, NAC has a sulphurous smell that reviewers flag consistently — refrigeration helps, but it's worth knowing before you buy. CLAV's bigger practical problem is transit damage: multiple buyers report the glass bottle arriving broken. The capsules are also reported as large and difficult for some people to swallow.

How Do the Scores Compare?

N-Acetyl Cysteine 600mg Fre...

Organic Milk Thistle & Arti...

	N-Acetyl Cysteine 600mg Fre... Solgar	Organic Milk Thistle & Arti... CLAV
Overall Score	80.0	73.0
Effectiveness	83.0/100 Best	70.0/100
Ingredient Quality	82.0/100 Best	80.0/100
Value for Money	70.0/100 Best	68.0/100
Side Effects	88.0/100 Best	70.0/100
Certifications	66.0/100	76.0/100 Best
Best Price	£25.20 Amazon UK →	£24.90 Amazon UK → Cheapest
Price per Serving	£0.42 60 servings	N/A
Form	Vegetable Capsule	‎Capsule
Dose	600mg	None
Third-Party Tested	✗ No	✗ No
Reviews Analysed	20	16

N-Acetyl Cysteine 600mg Free For...

Pros

✓Strong user-reported evidence for mucus reduction and respiratory support
✓Well-researched ingredient — NAC is clinically backed for liver support, glutathione synthesis, and antioxidant defence
✓600mg is a standard effective clinical dose in free-form for better absorption
✓Reputable brand with clean, allergen-free, vegan and Kosher-certified formulation

Cons

✗No independent third-party testing (NSF, Informed Sport) disclosed
✗NAC's characteristic sulphurous odour noted by several reviewers — refrigeration recommended
✗May disrupt sleep if taken in the evening — morning dosing advised
✗Premium brand pricing offers moderate value versus lower-cost NAC alternatives on the market

Best For

People seeking liver detox and glutathione support Those with chronic respiratory issues or excess mucus production Vegans and vegetarians needing a certified animal-free NAC supplement Individuals sensitive to gluten, dairy, or soya allergens Those interested in antioxidant support and cellular health

Amazon UK £25.20 Holland & Barrett £27.99

View full review →

Organic Milk Thistle & Artichoke...

Pros

✓Certified organic EU-sourced ingredients (DE-ÖKO-006), GMP and ISO 9001 manufacturing
✓Reported improvements in digestive regularity, stool quality, and liver function
✓Clean formulation — vegan, gluten-free, no artificial additives
✓Strong repurchase behaviour suggests sustained user satisfaction

Cons

✗Glass bottle frequently arrives broken or smashed in transit — multiple complaints
✗Capsules reported as large and difficult to swallow for some users
✗800mg milk thistle is powder, not standardised silymarin extract — potency may be lower than extract-based competitors
✗Not independently third-party tested for potency or purity verification

Best For

Adults seeking organic liver and digestive support Vegans and those with gluten or lactose sensitivities Supplement users prioritising clean, certified ingredient sourcing Those preferring European-manufactured products with documented quality standards

Amazon UK £24.90

View full review →

Score Breakdown: Solgar N-Acetyl Cysteine vs CLAV Milk Thistle & Artichoke

Solgar N-Acetyl Cysteine Winner 80.0/100

Solgar's NAC 600mg delivers N-Acetyl Cysteine in free-form for improved bioavailability — a well-researched glutathione precursor with strong science behind liver detoxification, antioxidant defence, and mucolytic activity.

Effectiveness

N-Acetyl Cystein..

83.0/100

Organic Milk Thi..

70.0/100

Ingredient Quality

N-Acetyl Cystein..

82.0/100

Organic Milk Thi..

80.0/100

Value for Money

N-Acetyl Cystein..

70.0/100

Organic Milk Thi..

68.0/100

Side Effects

N-Acetyl Cystein..

88.0/100

Organic Milk Thi..

70.0/100

Certifications

N-Acetyl Cystein..

66.0/100

Organic Milk Thi..

76.0/100

What are the key differences?

Solgar N-Acetyl Cysteine is best for: People seeking liver detox and glutathione support, Those with chronic respiratory issues or excess mucus production

CLAV Milk Thistle & Artichoke is best for: Adults seeking organic liver and digestive support, Vegans and those with gluten or lactose sensitivities

Frequently Asked Questions

Which is better, Solgar N-Acetyl Cysteine or CLAV Milk Thistle & Artichoke? ▼

Solgar NAC edges ahead with an 80 vs 73 overall score, backed by stronger clinical evidence for glutathione synthesis and a standard 600mg free-form dose. The £4.30 premium over CLAV is justified for those targeting respiratory or liver glutathione support. Choose CLAV if you want certified organic ingredients and digestive benefits — provided you can tolerate the transit packaging risk. Solgar N-Acetyl Cysteine scores 80.0/100 overall while CLAV Milk Thistle & Artichoke scores 73.0/100. Solgar N-Acetyl Cysteine comes out ahead, scoring higher on effectiveness (83.0 vs 70.0). Solgar N-Acetyl Cysteine is best suited for People seeking liver detox and glutathione support and Those with chronic respiratory issues or excess mucus production. CLAV Milk Thistle & Artichoke is better for Adults seeking organic liver and digestive support and Vegans and those with gluten or lactose sensitivities.

Is Solgar N-Acetyl Cysteine worth the price compared to CLAV Milk Thistle & Artichoke? ▼

Solgar N-Acetyl Cysteine costs £25.20 while CLAV Milk Thistle & Artichoke is £24.90. For value, Solgar N-Acetyl Cysteine scores 70.0/100 vs CLAV Milk Thistle & Artichoke's 68.0/100. Solgar N-Acetyl Cysteine delivers better value relative to its quality. Note that Solgar N-Acetyl Cysteine comes as vegetable capsule while CLAV Milk Thistle & Artichoke is ‎capsule, which may affect your preference.

Which has fewer side effects? ▼

Solgar N-Acetyl Cysteine scores 88.0/100 for side effects (higher means fewer reported issues) while CLAV Milk Thistle & Artichoke scores 70.0/100. Reviewers report fewer side effects with Solgar N-Acetyl Cysteine. For certification and testing, Solgar N-Acetyl Cysteine scores 66.0/100 vs CLAV Milk Thistle & Artichoke's 76.0/100. Always consult a healthcare professional before starting any supplement.