Solgar N-Acetyl Cysteine vs 4HIM & HER 4Him Liver Support

Q: Is Solgar N-Acetyl Cysteine worth the price compared to 4HIM & HER 4Him Liver Support?

Solgar N-Acetyl Cysteine scores 70.0/100 for value, while 4HIM & HER 4Him Liver Support scores 70.0/100. Both offer comparable value for money.

Side-by-side comparison of scores, ingredients, prices and real customer feedback for Solgar N-Acetyl Cysteine and 4HIM & HER 4Him Liver Support.

Last verified: 01 Mar 2026 · Based on 22 reviews

Back to comparison hub View liver & detox guide

Our Verdict: Solgar N-Acetyl Cysteine or 4HIM & HER 4Him Liver Support?

— AIScored Editorial Team

80.0

Score Summary

Solgar N-Acetyl Cysteine scores 80.0/100 vs 4HIM & HER 4Him Liver Support at 70.0/100. Solgar N-Acetyl Cysteine wins on effectiveness, ingredient quality. 4HIM & HER 4Him Liver Support is stronger on side effects and certifications.

Solgar N-Acetyl Cysteine vs 4HIM & HER 4Him Liver Support: What Does the Data Say?

These two liver support supplements take fundamentally different approaches. Solgar's NAC is a single-ingredient product — 600mg of N-Acetyl Cysteine in free-form, which improves absorption compared to bound forms, delivered in a vegetable capsule. It earns its 80/100 score (£25.20) by doing one thing well: NAC is clinically established for boosting glutathione synthesis, supporting liver detoxification, and thinning mucus in the airways. The 4HIM Liverhealth (70/100, £25.99) takes a blend approach, combining choline and selenium — both with EFSA-substantiated claims — in a vegan tablet format. It covers more ground on paper, but the lower effectiveness score of 70/100 versus Solgar's 83/100 reflects its more modest evidence base.

If you have a specific reason to want NAC — respiratory mucus, glutathione support, or post-illness liver recovery — Solgar is the clearer pick. Its ingredient quality score of 82/100 and strong user-reported results for respiratory symptoms give it a meaningful edge. The 4HIM product suits someone wanting a gentler, general liver maintenance supplement with a slightly broader nutritional profile, particularly if choline intake is a concern.

Practically, NAC has a well-known sulphurous smell — some users recommend keeping the bottle in the fridge to manage this. At nearly identical price points, the Solgar edges ahead for most buyers with a clear liver or respiratory goal.

How Do the Scores Compare?

N-Acetyl Cysteine 600mg Fre...

4Him Liverhealth Liver Supp...

	N-Acetyl Cysteine 600mg Fre... Solgar	4Him Liverhealth Liver Supp... 4HIM & HER
Overall Score	80.0	70.0
Effectiveness	83.0/100 Best	70.0/100
Ingredient Quality	82.0/100 Best	80.0/100
Value for Money	70.0/100 Best	70.0/100 Best
Side Effects	88.0/100	90.0/100 Best
Certifications	66.0/100	70.0/100 Best
Best Price	£25.20 Amazon UK → Cheapest	£25.99 Holland & Barrett →
Price per Serving	£0.42 60 servings	N/A
Form	Vegetable Capsule	None
Dose	600mg	None
Third-Party Tested	✗ No	✗ No
Reviews Analysed	20	2

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 →

4Him Liverhealth Liver Support 6...

Pros

✓Strong user satisfaction (5/5 from both reviewers with purchase intent)
✓GMP-certified with Eurofins quality assurance
✓EFSA-substantiated ingredient claims (choline for liver function, selenium for thyroid)
✓Vegan formula with 60-tablet monthly supply

Cons

✗Only 2 reviews available—limited user feedback for confidence
✗No third-party testing beyond Eurofins (e.g., NSF, USP)
✗Ingredient dosages not disclosed in product description
✗Liver health claims rely on ingredient-level evidence rather than whole-product clinical trials

Best For

Adults seeking general liver health maintenance Those with metabolic health concerns Vegans avoiding animal-derived ingredients People looking for antioxidant support

Holland & Barrett £25.99

View full review →

Score Breakdown: Solgar N-Acetyl Cysteine vs 4HIM & HER 4Him Liver Support

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

4Him Liverhealth..

70.0/100

Ingredient Quality

N-Acetyl Cystein..

82.0/100

4Him Liverhealth..

80.0/100

Value for Money

N-Acetyl Cystein..

70.0/100

4Him Liverhealth..

70.0/100

Side Effects

N-Acetyl Cystein..

88.0/100

4Him Liverhealth..

90.0/100

Certifications

N-Acetyl Cystein..

66.0/100

4Him Liverhealth..

70.0/100

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

4HIM & HER 4Him Liver Support is best for: Adults seeking general liver health maintenance, Those with metabolic health concerns

Frequently Asked Questions

Which is better, Solgar N-Acetyl Cysteine or 4HIM & HER 4Him Liver Support? ▼

Solgar NAC wins with an 80/100 score versus 4HIM's 70/100, thanks to stronger clinical backing and a proven 600mg free-form dose for liver and respiratory support. The 4HIM Liverhealth tablet suits those wanting a multi-ingredient blend with EFSA-validated choline and selenium claims for broader metabolic support. Solgar N-Acetyl Cysteine scores 80.0/100 overall while 4HIM & HER 4Him Liver Support scores 70.0/100. 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. 4HIM & HER 4Him Liver Support is better for Adults seeking general liver health maintenance and Those with metabolic health concerns.

Is Solgar N-Acetyl Cysteine worth the price compared to 4HIM & HER 4Him Liver Support? ▼

Solgar N-Acetyl Cysteine costs £25.20 while 4HIM & HER 4Him Liver Support is £25.99. For value, Solgar N-Acetyl Cysteine scores 70.0/100 vs 4HIM & HER 4Him Liver Support's 70.0/100. Both offer similar value for money.

Which has fewer side effects? ▼

Solgar N-Acetyl Cysteine scores 88.0/100 for side effects (higher means fewer reported issues) while 4HIM & HER 4Him Liver Support scores 90.0/100. Reviewers report fewer side effects with 4HIM & HER 4Him Liver Support. For certification and testing, Solgar N-Acetyl Cysteine scores 66.0/100 vs 4HIM & HER 4Him Liver Support's 70.0/100. Always consult a healthcare professional before starting any supplement.