Best B-Complex Supplements 2026: Cost per Effective Dose
Top pick for B-Complex: Nature Made Super B-Complex with Vitamin C (140 Tablets) — 2mg B6 per 1 tablet, USP Verified, $0.07/day.
All B-Complex Supplements Compared
B-complex products differ enormously in strength, and B6 is the one to watch: this catalog ranges from 2 mg to 100 mg of B6 per serving, a fifty-fold spread. ⚠ Sustained high-dose B6 is associated with peripheral neuropathy, and the tolerable upper intake level for adults is 100 mg a day from all sources — several “B-50” and “B-100” formulas sit at or near that ceiling. Methylated forms are worth choosing; megadoses are not.
All 11 products sorted by cost per labelled serving (lowest first). Dose, certification, and pricing verified against NIH DSLD and manufacturer data.
Read the dose column before the price column. Servings in this category are not equivalent — they range from 2 to 100 mg B6 per serving. A lower cost per day here can simply mean a smaller serving, so the cheapest row is not automatically the best value.
| Product | Brand | Dose / Serving | Cost / Day | Certification | Pick | Buy |
|---|---|---|---|---|---|---|
| Nature Made Super B-Complex with Vitamin C (140 Tablets) | Nature Made | 2mg B6 / 1 tablet | $0.07 | USP Verified | Buy | |
| Nature's Bounty Super B-Complex with Vitamin C (150 Tablets) | Nature's Bounty | 5mg B6 / 1 tablet | $0.07 | None | Buy | |
| NOW Vitamin B-50 (100 Veg Capsules) | NOW Foods | 50mg B6 / 1 capsule | $0.12 | None | Buy | |
| Solgar B-Complex '50' (100 Veg Capsules) | Solgar | 50mg B6 / 1 capsule | $0.12 | None | Buy | |
| NOW Vitamin B-100 (100 Veg Capsules) | NOW Foods | 100mg B6 / 1 capsule | $0.13 | None | Buy | |
| Solgar B-Complex '100' (100 Veg Capsules) | Solgar | 100mg B6 / 1 capsule | $0.19 | None | Buy | |
| Jarrow Formulas B-Right (100 Veggie Caps) | Jarrow Formulas | 35mg B6 / 1 capsule | $0.20 | None | Buy | |
| Pure Encapsulations B-Complex Plus (120 Capsules) | Pure Encapsulations | 16.7mg B6 / 1 capsule | $0.35 | None | Buy | |
| Country Life Coenzyme B-Complex (120 Capsules) | Country Life | 50mg B6 / 2 capsules | $0.44 | None | Buy | |
| Designs for Health B-Supreme Methylated B Complex (120 Capsules) | Designs for Health | 50mg B6 / 1 capsule | $0.44 | None | Buy | |
| Thorne Basic B Complex (60 Capsules) | Thorne | 10mg B6 / 1 capsule | $0.45 | NSF Certified | Buy |
In-Depth B-Complex Guides
Go deeper on b-complex — by goal, by form, and what the evidence actually supports:
Our Picks
Lowest Cost: Nature Made Super B-Complex with Vitamin C (140 Tablets)
2mg B6 per 1 tablet. USP Verified. $0.07/day. 140 servings per container at $9.89.
How We Rank B-Complex Supplements
Every product is evaluated on three criteria:
- Cost per day. Not cost per pill or cost per bottle — what it actually costs per day at the product's labelled serving. Where a category's servings differ in strength we flag it above the table, because cost per day is only comparable when the doses are.
- Third-party certification. USP Verified, NSF Certified for Sport, and ConsumerLab Approved indicate independent testing for purity, potency, and contaminants.
- Bioavailable form. We prioritize products using the specific chemical form shown to be most effective in published research.
Rankings are not influenced by affiliate commissions. We earn the same commission regardless of which product you choose. Read our full methodology.
Personalize Your B-Complex Choice
Not sure which b-complex supplement is right for you? Use our free tools:
- DNA Supplement Analyzer — upload 23andMe or AncestryDNA data to check for genetic variants affecting b-complex metabolism. Runs entirely in your browser.
- Lab Results Interpreter — enter your blood test values to get personalized dosing recommendations.
- Supplement Stack Builder — build a complete protocol based on your age, sex, medications, and goals.
- Supplement Audit — already taking b-complex? Check if you have the right form and dose.