Jarrow Formulas Methyl Folate vs Solgar Liquid B12 B-Complex
Side-by-side comparison of scores, ingredients, prices and real customer feedback for Jarrow Formulas Methyl Folate and Solgar Liquid B12 B-Complex.
Last verified: 28 Mar 2026 · Based on 54 reviews
Jarrow Formulas Methyl Folate scores 81.0/100 vs Solgar Liquid B12 B-Complex at 80.0/100. Jarrow Formulas Methyl Folate wins on ingredient quality. Solgar Liquid B12 B-Complex is stronger on effectiveness and side effects.
Jarrow Formulas Methyl Folate vs Solgar Liquid B12 B-Complex: What Does the Data Say?
Vegan Methyl Folate from Jarrow Formulas edges out Liquid B12 from Solgar by a single point overall with scores of 81/100 against 80/100. The two products target quite different needs in the B vitamin category. Vegan Methyl Folate delivers 400 mcg of Quatrefolic (6S)-5-MTHF in small veggie capsules while Liquid B12 provides 2000µg of B12 in a 59ml sublingual liquid along with a full B-complex. One works around MTHFR conversion problems as a direct source of active folate. The other supplies high dose B12 plus supporting B vitamins in a form that absorbs under the tongue.
People with MTHFR gene variants or confirmed folate deficiency should pick Vegan Methyl Folate at £9.70 because it bypasses conversion issues and many users report better energy and mood after a few weeks. Those who need B12 for deficiency or absorption problems and prefer not to swallow pills will get on better with Liquid B12 at £15.60 since it shows perfect five-star reviews for energy gains and comes in a liquid that pairs B12 with the rest of the complex for metabolic support. Value sits level at 80/100 for both yet the folate option gives stronger ingredient quality at 90/100 compared with 70/100 for the liquid.
Practical points matter too. The methyl folate capsules are tiny with no taste or smell though some sensitive users notice anxiety or irritability if they skip pairing it with B12 and B6. Liquid B12 avoids capsules altogether and users like the convenience yet it contains palm kernel oil which bothers some who watch their environmental choices. Choose based on whether your body needs active folate or a hefty B12 top-up with companions.
How Do the Scores Compare?
Vegan Methyl Folate, 400 mc...
Jarrow Formulas
|
Liquid B12 2000µg with B-Co...
Solgar
|
|
|---|---|---|
| Overall Score | 81.0 | 80.0 |
| Effectiveness | 85.0/100 |
90.0/100
Best
|
| Ingredient Quality |
90.0/100
Best
|
70.0/100 |
| Value for Money |
80.0/100
Best
|
80.0/100
Best
|
| Side Effects | 77.0/100 |
80.0/100
Best
|
| Certifications | 35.0/100 |
40.0/100
Best
|
| Best Price |
£9.89
iHerb →
Cheapest
|
£15.60 Holland & Barrett → |
| Form | None | liquid |
| Dose | None | None |
| Third-Party Tested | ✗ No | ✗ No |
| Reviews Analysed | 50 | 4 |
Vegan Methyl Folate, 400 mcg, 60...
Pros
- ✓Quatrefolic® (6S)-5-MTHF bypasses MTHFR conversion issues — multiple reviewers specifically chose it for this reason
- ✓Small capsule size consistently praised; neutral taste, no smell
- ✓Energy boost and mood improvement reported by reviewers after a few weeks of regular use
- ✓Clean excipient list — vegetable-source magnesium stearate, HPMC capsule, no unnecessary fillers
Cons
- ✗Can cause anxiety or agitation in sensitive individuals — one reviewer switched to folinic acid specifically because of this
- ✗Works best paired with B12 and B6; some reviewers noted irritability when taken without a B-complex
- ✗Not universally appropriate — one reviewer's doctor advised against the methyl form due to transulfation pathway issues
- ✗No verified third-party testing per product specs
Best For
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
Score Breakdown: Jarrow Formulas Methyl Folate vs Solgar Liquid B12 B-Complex
Jarrow's 400 mcg methylfolate uses Quatrefolic® — the glucosamine salt of (6S)-5-MTHF — which the body absorbs without the conversion step that folic acid requires.
What are the key differences?
Frequently Asked Questions
Which is better, Jarrow Formulas Methyl Folate or Solgar Liquid B12 B-Complex? ▼
Is Jarrow Formulas Methyl Folate worth the price compared to Solgar Liquid B12 B-Complex? ▼
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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