Solgar N-Acetyl Cysteine vs N2 Nutrition Milk Thistle Detox

Q: Is Solgar N-Acetyl Cysteine worth the price compared to N2 Nutrition Milk Thistle Detox?

Solgar N-Acetyl Cysteine scores 70.0/100 for value, while N2 Nutrition Milk Thistle Detox scores 73.0/100. N2 Nutrition Milk Thistle Detox delivers better value overall.

Side-by-side comparison of scores, ingredients, prices and real customer feedback for Solgar N-Acetyl Cysteine and N2 Nutrition Milk Thistle Detox.

Last verified: 01 Mar 2026 · Based on 36 reviews

Back to comparison hub View liver & detox guide

Our Verdict: Solgar N-Acetyl Cysteine or N2 Nutrition Milk Thistle Detox?

— AIScored Editorial Team

80.0

Score Summary

Solgar N-Acetyl Cysteine scores 80.0/100 vs N2 Nutrition Milk Thistle Detox at 74.0/100. Solgar N-Acetyl Cysteine wins on effectiveness, ingredient quality. N2 Nutrition Milk Thistle Detox is stronger on value for money and certifications.

Solgar N-Acetyl Cysteine vs N2 Nutrition Milk Thistle Detox: What Does the Data Say?

Solgar's NAC is a single-ingredient capsule delivering 600mg of free-form N-Acetyl Cysteine — a clinically studied dose used across liver support and respiratory research. The N2 Natural Nutrition Milk Thistle complex takes a broader approach, combining milk thistle extract (at a concentrated 38:1 ratio equating to 6840mg), artichoke, choline, NAC, B vitamins, selenium, and burdock in one capsule. Solgar scores 80/100 at £25.20; the N2 product scores 74/100 at £16.95.

If you want targeted NAC therapy — for glutathione production, liver detox support, or managing respiratory mucus — Solgar's standalone formula is the better pick. The dose is precise and the free-form absorption is well-regarded. It suits vegans and those who prefer knowing exactly what they're getting. The N2 complex suits someone coming off a period of poor diet or alcohol who wants broad liver and digestive support without buying five separate supplements. The £16.95 price makes it accessible for regular use.

Practically, Solgar's NAC has a notable sulphurous smell — keep it refrigerated. The N2 capsules are reportedly easy to swallow and tasteless.

How Do the Scores Compare?

N-Acetyl Cysteine 600mg Fre...

Milk Thistle Detox Complex ...

	N-Acetyl Cysteine 600mg Fre... Solgar	Milk Thistle Detox Complex ... N2 Natural Nutrition
Overall Score	80.0	74.0
Effectiveness	83.0/100 Best	72.0/100
Ingredient Quality	82.0/100 Best	77.0/100
Value for Money	70.0/100	73.0/100 Best
Side Effects	88.0/100 Best	88.0/100 Best
Certifications	66.0/100	74.0/100 Best
Best Price	£25.20 Amazon UK →	£16.95 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 →

Milk Thistle Detox Complex (38:1...

Pros

✓Broad-spectrum formula combining liver-specific actives (milk thistle, artichoke, NAC, choline) with antioxidant and B-vitamin support
✓Consistent user reports of improved digestion, reduced bloating, and better general wellbeing
✓Easy to swallow, tasteless chlorophyll capsules — no magnesium stearate, gluten-free, or lactose
✓Vegan Society UK certified, manufactured to GMP and ISO 9001 standards

Cons

✗Not independently third-party tested for potency or purity verification
✗Heavy use of 'detox' and 'cleanse' marketing language that overstates what the science supports
✗Capsule size (22mm) is relatively large and may be uncomfortable for some users
✗No published clinical data specific to this formulation or brand

Best For

People seeking liver support after periods of dietary excess or alcohol Those managing non-alcoholic fatty liver disease (NAFLD) alongside lifestyle changes Post-cholecystectomy (gallbladder removal) patients supporting fat digestion Vegans and vegetarians wanting a certified liver supplement Users looking for a comprehensive all-in-one liver formula rather than single-ingredient products

Amazon UK £16.95

View full review →

Score Breakdown: Solgar N-Acetyl Cysteine vs N2 Nutrition Milk Thistle Detox

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

Milk Thistle Det..

72.0/100

Ingredient Quality

N-Acetyl Cystein..

82.0/100

Milk Thistle Det..

77.0/100

Value for Money

N-Acetyl Cystein..

70.0/100

Milk Thistle Det..

73.0/100

Side Effects

N-Acetyl Cystein..

88.0/100

Milk Thistle Det..

88.0/100

Certifications

N-Acetyl Cystein..

66.0/100

Milk Thistle Det..

74.0/100

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

N2 Nutrition Milk Thistle Detox is best for: People seeking liver support after periods of dietary excess or alcohol, Those managing non-alcoholic fatty liver disease (NAFLD) alongside lifestyle changes

Frequently Asked Questions

Which is better, Solgar N-Acetyl Cysteine or N2 Nutrition Milk Thistle Detox? ▼

Solgar NAC wins with an 80/100 score versus 74/100, offering a clinically dosed, single-ingredient 600mg free-form NAC with stronger effectiveness ratings. The N2 Natural Nutrition complex suits those wanting a broader liver-support blend at nearly £8 less, pairing milk thistle, artichoke, and choline alongside NAC for a multi-action approach. Solgar N-Acetyl Cysteine scores 80.0/100 overall while N2 Nutrition Milk Thistle Detox scores 74.0/100. Solgar N-Acetyl Cysteine comes out ahead, scoring higher on effectiveness (83.0 vs 72.0). 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. N2 Nutrition Milk Thistle Detox is better for People seeking liver support after periods of dietary excess or alcohol and Those managing non-alcoholic fatty liver disease (NAFLD) alongside lifestyle changes.

Is Solgar N-Acetyl Cysteine worth the price compared to N2 Nutrition Milk Thistle Detox? ▼

Solgar N-Acetyl Cysteine costs £25.20 while N2 Nutrition Milk Thistle Detox is £16.95. For value, Solgar N-Acetyl Cysteine scores 70.0/100 vs N2 Nutrition Milk Thistle Detox's 73.0/100. N2 Nutrition Milk Thistle Detox delivers better value relative to its quality. Note that Solgar N-Acetyl Cysteine comes as vegetable capsule while N2 Nutrition Milk Thistle Detox 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 N2 Nutrition Milk Thistle Detox scores 88.0/100. Both have similar side effect profiles based on user reviews. For certification and testing, Solgar N-Acetyl Cysteine scores 66.0/100 vs N2 Nutrition Milk Thistle Detox's 74.0/100. Always consult a healthcare professional before starting any supplement.