Liquid B12 2000µg with B-Complex 59ml vs Igennus Super B-Complex - High Absorption Methylated B Vitamins, Clean Label, 180 Sustained Release Tablets - Complete Spectrum of B Vitamins with Folate, Boosted B12 & Vitamin C, 90 Servings
Side-by-side comparison of scores, ingredients, prices and real customer feedback for Liquid B12 2000µg with B-Complex 59ml and Igennus Super B-Complex - High Absorption Methylated B Vitamins, Clean Label, 180 Sustained Release Tablets - Complete Spectrum of B Vitamins with Folate, Boosted B12 & Vitamin C, 90 Servings.
Last verified: 07 Apr 2026 · Based on 19 reviews
Liquid B12 2000µg with B-Complex 59ml scores 80.0/100 vs Igennus Super B-Complex - High Absorption Methylated B Vitamins, Clean Label, 180 Sustained Release Tablets - Complete Spectrum of B Vitamins with Folate, Boosted B12 & Vitamin C, 90 Servings at 79.0/100. Liquid B12 2000µg with B-Complex 59ml wins on effectiveness, value for money. Igennus Super B-Complex - High Absorption Methylated B Vitamins, Clean Label, 180 Sustained Release Tablets - Complete Spectrum of B Vitamins with Folate, Boosted B12 & Vitamin C, 90 Servings is stronger on ingredient quality and side effects.
Which is better: Liquid B12 2000µg with B-Co... or Igennus Super B-Complex - H...?
Solgar Liquid B12 wins with a higher overall score (80 vs 79) and a much lower price of £15.60 versus £25.99, making it the better everyday pick for most people. Choose Igennus instead if you have an MTHFR gene variant or need sustained-release delivery, as its methylated forms and clean-label formula justify the premium.
— AIScored Editorial Team
How Do the Scores Compare?
Liquid B12 2000µg with B-Co...
Solgar
|
Igennus Super B-Complex - H...
Igennus Healthcare Nutrition
|
|
|---|---|---|
| Overall Score | 80.0 | 79.0 |
| Effectiveness |
90.0/100
Best
|
82.0/100 |
| Ingredient Quality | 70.0/100 |
89.0/100
Best
|
| Value for Money |
80.0/100
Best
|
70.0/100 |
| Side Effects | 80.0/100 |
87.0/100
Best
|
| Certifications | 40.0/100 |
55.0/100
Best
|
| Best Price |
£15.60
Holland & Barrett →
Cheapest
|
£25.99 Amazon UK → |
| Form | liquid | Tablet |
| Dose | None | None |
| Third-Party Tested | ✗ No | ✗ No |
| Reviews Analysed | 4 | 15 |
Liquid B12 2000µg with B-Complex 59ml
Pros
- ✓Consistently excellent user satisfaction (4/4 reviews at 5 stars) with reported improvement in energy and B12 levels
- ✓High bioavailability sublingual format may absorb better than tablets for B12 absorption
- ✓Generous 2000µg B12 dose plus complete B-complex for synergistic metabolic support
- ✓Suitable for vegans and vegetarians (particularly important given B12 is animal-derived)
Cons
- ✗No third-party testing or quality verification certification visible
- ✗Contains palm kernel oil (glycerin source) which may concern environmentally-conscious consumers
- ✗Cyanocobalamin form is synthetic; some prefer methylcobalamin as more bioavailable
- ✗Potassium sorbate preservative and artificial flavoring agents may deter some natural-focused buyers
Best For
Igennus Super B-Complex - High A...
Pros
- ✓Methylated B12 (methylcobalamin) and folate (methylfolate) for superior bioavailability and MTHFR compatibility
- ✓Clean-label formula with no silicon dioxide, magnesium stearate, or titanium dioxide
- ✓Sustained-release delivery provides steady energy without afternoon crashes
- ✓Includes Vitamin C alongside the full B-complex spectrum
Cons
- ✗Premium price point — not the cheapest B-complex on the market
- ✗Not independently third-party tested (only lab-verified internally)
- ✗One reviewer reported a noticeable formula change that reduced confidence in consistency
- ✗Twice-daily dosing requirement questions the claimed sustained-release mechanism
Best For
What does the data say about Liquid B12 2000µg with... vs Igennus Super B-Comple...?
These two products take very different approaches to B vitamin supplementation. Solgar's liquid formula delivers 2000µg of B12 in sublingual form alongside a full B-complex, meaning it absorbs directly through the mouth's mucous membranes rather than relying on gut absorption — useful for anyone with digestive issues or low intrinsic factor. Igennus goes a different route with sustained-release tablets using methylated forms: methylcobalamin for B12 and methylfolate rather than standard folic acid, which matters significantly for people with the MTHFR gene variant who struggle to convert synthetic folate. At £15.60 versus £25.99, Solgar scores 80/100 while Igennus sits just behind at 79/100, though Igennus pulls ahead on ingredient quality (89 versus 70).
If you're vegan, have absorption difficulties, or simply can't swallow tablets, the Solgar liquid is the more practical choice — and considerably cheaper. Igennus suits those who want methylated forms for genetic reasons, prefer the convenience of tablets, or experience ongoing fatigue and brain fog that hasn't responded to standard B-complex supplements.
Neither product carries independent third-party certification, which is worth noting at these price points. Solgar's liquid contains palm kernel oil derivatives, which may give pause to environmentally-minded shoppers. Igennus's clean-label credentials — free from silicon dioxide and magnesium stearate — will appeal to those who read excipient lists carefully.
Solgar's Liquid B12 2000µg with B-Complex is a sublingual supplement designed for those who struggle with tablets or capsules, with all reviewers giving 5-star ratings and reporting improved energy levels and B12 status.
What are the key differences?
Frequently Asked Questions
Which is better, Liquid B12 2000µg with B-Complex 59ml or Igennus Super B-Complex - High Absorption Methylated B Vitamins, Clean Label, 180 Sustained Release Tablets - Complete Spectrum of B Vitamins with Folate, Boosted B12 & Vitamin C, 90 Servings? ▼
Is Liquid B12 2000µg with B-Complex 59ml worth the price compared to Igennus Super B-Complex - High Absorption Methylated B Vitamins, Clean Label, 180 Sustained Release Tablets - Complete Spectrum of B Vitamins with Folate, Boosted B12 & Vitamin C, 90 Servings? ▼
Which has fewer side effects? ▼
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Disclaimer: AIScored provides data-driven comparisons based on publicly available reviews. This is not medical advice. Affiliate links may earn us a commission at no extra cost to you.
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