Solgar Folate Metafolin 400µg vs Active Iron Active Folic
Side-by-side comparison of scores, ingredients, prices and real customer feedback for Solgar Folate Metafolin 400µg and Active Iron Active Folic.
Last verified: 01 Mar 2026 · Based on 62 reviews
Solgar Folate Metafolin 400µg scores 86.0/100 vs Active Iron Active Folic at 80.0/100. Solgar Folate Metafolin 400µg wins on effectiveness, ingredient quality, side effects. Active Iron Active Folic is stronger on value for money.
Solgar Folate Metafolin 400µg vs Active Iron Active Folic: What Does the Data Say?
Folate (As Metafolin®) 400µg 50 Tablets from Solgar scores 86.0/100 overall and uses Metafolin which is the bioactive L-5-methyltetrahydrofolate form that the body can use straight away. Active Folic 60 Capsules from Active Iron scores 80.0/100 and relies on Quatrefolic methylfolate instead. Both deliver 400μg yet one comes as tablets while the other arrives in capsules. Solgar packs just 50 tablets so it lasts around seven weeks at one per day. Active Iron gives 60 capsules for a bit longer supply.
Solgar wins on effectiveness at 88.0/100 against 80.0/100 and on ingredient quality at 93.0/100 versus 80.0/100 so it suits MTHFR mutation carriers who cannot convert synthetic folic acid plus anyone with diagnosed folate deficiency. Active Folic wins on value at 80.0/100 compared with Solgar's 68.0/100 and costs £12.99 against Solgar's £9.20 which makes it the better pick for those on tighter budgets who still want methylfolate. People who need confirmed blood folate improvements from lab tests should choose Solgar. Those who rate gentle GI tolerability higher will prefer Active Folic.
Solgar tablets have no reported taste issues while Active Folic capsules earn praise for easy swallowing. Active Folic is not vegan because the capsule and processing may contain animal-derived ingredients. Solgar shows no such restriction in the details.
How Do the Scores Compare?
Folate (As Metafolin®) 400µ...
Solgar
|
Active Folic 60 Capsules
Active Iron
|
|
|---|---|---|
| Overall Score | 86.0 | 80.0 |
| Effectiveness |
88.0/100
Best
|
80.0/100 |
| Ingredient Quality |
93.0/100
Best
|
80.0/100 |
| Value for Money | 68.0/100 |
80.0/100
Best
|
| Side Effects |
95.0/100
Best
|
90.0/100 |
| Certifications |
76.0/100
Best
|
40.0/100 |
| Best Price |
£8.05
Holland & Barrett →
Cheapest
|
£12.99 Holland & Barrett → |
| Form | Tablets | capsule |
| Dose | None | None |
| Third-Party Tested | ✗ No | ✗ No |
| Reviews Analysed | 58 | 4 |
Folate (As Metafolin®) 400µg 50 Tablets
Pros
- ✓Uses Metafolin® (L-5-methyltetrahydrofolate), the bioactive form directly usable by the body — superior absorption vs. synthetic folic acid
- ✓Highly effective for MTHFR mutation carriers who cannot convert regular folic acid
- ✓Multiple reviewers report confirmed improvements in blood folate levels via lab testing
- ✓Small, easy-to-swallow tablets with neutral taste and no reported digestive side effects
Cons
- ✗Small pack size — 50 tablets is only ~7 weeks' supply at the standard one-per-day dose
- ✗Not third-party tested per product specs, limiting independent purity verification
- ✗One Amazon reviewer reported receiving 46 tablets instead of 50 (possible quality control lapse)
- ✗Several iHerb reviews appear to describe the 1000mcg/120-tablet variant rather than this 400µg/50-tablet product, slightly muddying the review signal
Best For
Active Folic 60 Capsules
Pros
- ✓Methylfolate form (Quatrefolic®) offers superior bioavailability compared to synthetic folic acid
- ✓400μg dose meets UK and international preconception/pregnancy supplementation guidelines
- ✓Consistently praised by reviewers for gentle GI tolerability and ease of swallowing
- ✓Established brand (Active Iron) with positive reputation for quality supplements
Cons
- ✗No third-party testing certification mentioned (USP, NSF, etc.)
- ✗Not vegan (capsule and processing may contain animal-derived ingredients)
- ✗Only 4 reviews available—limited user feedback pool
- ✗No clinical data provided comparing actual absorption rates to standard folic acid claims
Best For
Score Breakdown: Solgar Folate Metafolin 400µg vs Active Iron Active Folic
Solgar's Folate as Metafolin® 400µg is a premium-grade folate supplement using L-methylfolate, the bioidentical, body-ready form of vitamin B9 that bypasses the need for hepatic conversion.
What are the key differences?
Frequently Asked Questions
Which is better, Solgar Folate Metafolin 400µg or Active Iron Active Folic? ▼
Is Solgar Folate Metafolin 400µg worth the price compared to Active Iron Active Folic? ▼
Which has fewer side effects? ▼
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